aluminum protons neutrons electrons

Electrons revolve around the nucleus in a specific orbit. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged atomthe Na+ cation. Selenium is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. How to easily find the number of electrons, protons and neutrons in a zinc atom? What are the 4 major sources of law in Zimbabwe? The metal is found in the Earths crust in the pure, free elemental form (native silver), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons? What is the charge of the aluminum ion? Rounding this atomic weight to the nearest whole number yields the elements mass number. Thechemical symbolfor Krypton isKr. Calcium is an alkaline earth metal, it is a reactive pale yellow metal that forms a dark oxide-nitride layer when exposed to air. The information contained in this website is for general information purposes only. There are two reasons for the difference between mass number and isotopic mass, known as themass defect: Note that, it was found therest mass of an atomic nucleusis measurably smaller thanthe sum of the rest masses of its constituentprotons,neutronsand electrons. Quality education can build a beautiful society. Atomic number (Z) = Number of charges in the nucleus (p). How many protons are in a radium-226 nuclide? How many protons are in an ion with 10 electrons and a -1 charge? The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. The number of neutrons will be the same as the number of Mass numbers of typical isotopes of Aluminium are 27. Zinc has only two electrons in its last orbit. It is one of the least reactive chemical elements and is solid under standard conditions. How many protons and neutrons are in Cl 37? Discoverer: Scientists at Dubna, Russia (1964)/Albert Ghiorso et. The atomic number of the element is expressed by Z. Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. WebList the number of protons, neutrons and electrons in 13/6 c. Answers: 2 Show answers Another question on Chemistry. Germanium is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Copper is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. It is by mass the most common element on Earth, forming much of Earths outer and inner core. I did a lot of research on chemistry in college life and always tried to learn something new. One of the topics of my research is the periodic table. Natural boron consists primarily of two stable isotopes, 11B (80.1%) and 10B (19.9%). Titaniumis a chemical element withatomic number22which means there are 22 protons and 22 electrons in the atomic structure. Thechemical symbolfor Rhodium isRh. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. Thechemical symbolfor Plutonium isPu. Chlorineis a chemical element withatomic number17which means there are 17 protons and 17 electrons in the atomic structure. Calcium is the 20th element, with 20 protons. 1) What is the most abundant isotope of sodium? Thechemical symbolfor Antimony isSb. There are only certain combinations of neutrons and protons, which formsstable nuclei. Radon is a radioactive, colorless, odorless, tasteless noble gas. Thalliumis a chemical element withatomic number81which means there are 81 protons and 81 electrons in the atomic structure. If an atom has an atomic number of 8, how many protons will it have? We write it as: 2 4 H e o r 2 4 . The atomic number of an element is equal to the number of protons and electrons in that element. Thechemical symbolfor Hydrogen isH. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. E. Discoverer: De Marignac, Charles Galissard, Discoverer: De Marignac, Jean Charles Galissard, Discoverer: Ghring, Otto and Fajans, Kasimir. Therefore, its a d-block element. Thechemical symbolfor Argon isAr. 10.0 mol d. The number of electrons and protons in an element is determined by the atomic number. Electrons, protons, and neutrons are located in the atom as permanent particles. Berkelium is a member of the actinide and transuranium element series. It is expressed by e. Weba. Nobeliumis a chemical element withatomic number102which means there are 102 protons and 102 electrons in the atomic structure. Web Answers: 3 question Given that an atom is neutral, its atomic mass (A) is the total number of its protons and neutrons and its atomic number (Z) is the total number of its protons. The number of neutrons in an atom can be determined by the difference between the atomic mass and the number of protons. The Cookies Statement is part of our Privacy Policy. So, if 1000 crore atoms of hydrogen are arranged side by side, it will be 1 meter long. An atomic number is a number that carries the properties of an element. Thechemical symbolfor Ytterbium isYb. Thechemical symbolfor Copper isCu. There are two types of particles in the nucleus. Magnesiumis a chemical element withatomic number12which means there are 12 protons and 12 electrons in the atomic structure. Kauna unahang parabula na inilimbag sa bhutan? We know that an equal number of protons of atomic number are located in the nucleus of the element and electrons equal to protons are in orbit outside the nucleus. It is the fourth most common element in the Earths crust. We already know that the atomic number of zinc is 30. 14 neutrons, 13 protons and has 13 electrons in the neutral However, the actual mass of the proton is 1.6726 1027kg. The excess neutrons act somewhat like nuclear glue.Only two stable nuclides have fewer neutrons than protons: hydrogen-1 and helium-3. Lanthanumis a chemical element withatomic number57which means there are 57 protons and 57 electrons in the atomic structure. The smallest of the permanent core particles of an atom is the electron. Titanium is a lustrous transition metal with a silver color, low density, and high strength. In an atomic ion only the number of electrons changes but the number of protons and neutrons does not change. To determine the stability of an isotope you can use the ratio neutron/proton (N/Z). Aluminiumis a chemical element with atomic number13which means there are 13 protons and 13 electrons in the atomic structure. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide. 22K views 2 years ago In this video well use the Periodic table and a few simple rules to find the number of protons and electrons for the Aluminum ion (Al 3+). Therefore, the mass of the nucleus is called atomic mass. How many protons does rutherfordium have? Weba. We must always remember that the atomic number and the number of protons of an element are equal. Thechemical symbolfor Tantalum isTa. Beryllium is a hard, grayish metal naturally found in mineral rocks, coal, soil, and volcanic dust. Therefore, the valence electrons of vanadium are five. Thechemical symbolfor Praseodymium isPr. That is, there are twenty-three electrons in the atom of the vanadium element. Nickelis a chemical element withatomic number28which means there are 28 protons and 28 electrons in the atomic structure. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.. Visit Stack Exchange WebShort Answer. Its mass is about 1/1836 of the mass of a hydrogen atom. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air. Also, the valency,valence electrons, and ionic properties of the elements are determined by the electron configuration. For example, the neutron number of uranium-238 is 238-92=146. Thulium is an easily workable metal with a bright silvery-gray luster. The number of neutrons equals the mass number minus the atomic number. Mass numbers of typical isotopes ofAluminiumare27. Protons, neutrons and electrons of all elements, Electron Configuration Calculator Get answer within 1 sec. What is exactly equal to the total number of protons and neutrons in an atom? Aluminum-27 is the only stable isotope of this metal, and it has 14 neutrons, 13 protons and has 13 electrons in the neutral atom. Thechemical symbolfor Gadolinium isGd. Berylliumis a chemical element withatomic number4which means there are 4 protons and 4 electrons in the atomic structure. Copper-65 has how many protons and how many neutrons. What is the charge of the aluminum - Brainly.com 02/10/2021 Chemistry High School answered expert verified An aluminum ion has 13 protons, 14 neutrons, and 10 electrons. Iridium is a very hard, brittle, silvery-white transition metal of the platinum group, iridium is generally credited with being the second densest element (after osmium). The results of his experiments show that each element has a unique integer equal to the number of positive charges in the nucleus of that element. At 0.099%, phosphorus is the most abundant pnictogen in the Earths crust. WebPhysical reality is based on electrons, protons, and neutrons, while virtual reality is based only on electrons. If there are too many or too few neutrons for a given number of protons, the resulting nucleus is not stable and it undergoesradioactive decay.Unstable isotopesdecay through various radioactive decay pathways, most commonlyalpha decay,beta decay,gamma decayorelectron capture. Neptuniumis a chemical element withatomic number93which means there are 93 protons and 93 electrons in the atomic structure. That is, the charge of an electron is equal to that of a proton but the opposite. Lithiumis a chemical element withatomic number3which means there are 3 protons and 3 electrons in the atomic structure. Flare electrons protons, alphas, heavy ions neutrons bremsstrahlung nuclear de-excitation, Second-step acceleration (e.g. 1) You may use almost everything for non-commercial and educational use. Cadmiumis a chemical element withatomic number48which means there are 48 protons and 48 electrons in the atomic structure. Berkeliumis a chemical element withatomic number97which means there are 97 protons and 97 electrons in the atomic structure. Ruthenium is a rare transition metal belonging to the platinum group of the periodic table. Gold is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Astatine is the rarest naturally occurring element on the Earths crust. Atoms are so small particles that they cannot be seen even under a powerful microscope. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. Thechemical symbolfor Radon isRn. How many 5 letter words can you make from Cat in the Hat? Actinium is a soft, silvery-white radioactive metal. Silver is a soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Mercury is commonly known as quicksilver and was formerly named hydrargyrum. As a result, as the number of protons increases,an increasing ratio of neutrons to protons is neededto form a stable nucleus. Save my name, email, and website in this browser for the next time I comment. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) stabilizes the free metal somewhat against further oxidation. The difference between the mass number of the vanadium atom and the number of protons is twenty-eight. We know that the atomic number of vanadium is 23 and the atomic average mass number is about 51. Thechemical symbolfor Zirconium isZr. 2Al(s) + 3H2SO4(aq) Al2(SO4)3(aq) + 3H2(g) a. Thechemical symbolfor Iodine isI. Iodine is the heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a violet gas. Silicon is a hard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid and semiconductor. It is occasionally found in native form as elemental crystals. Arsenicis a chemical element withatomic number33which means there are 33 protons and 33 electrons in the atomic structure. The atomic mass is the mass of an atom. The results of his experiments show that each element has a unique integer equal to the number of positive charges in the nucleus of that element. Astatineis a chemical element withatomic number85which means there are 85 protons and 85 electrons in the atomic structure. The diameter of anatom of hydrogenis 0.1nm (1.0nm = 10-9m). Thechemical symbolfor Silver isAg. Fluorineis a chemical element withatomic number9which means there are 9 protons and 9 electrons in the atomic structure. Chemically, indium is similar to gallium and thallium. Sodiumis a chemical element withatomic number11which means there are 11 protons and 11 electrons in the atomic structure. Therefore, an aluminum atom has thirteen protons and There are 13 electrons and protons. Tungsten is an intrinsically brittle and hard material, making it difficult to work. Protons = 13 Electrons = 13 Neutrons = 14. Thechemical symbolfor Thallium isTl. Thechemical symbolfor Scandium isSc. Protons are the positively charged particles in an atom, while neutrons are subatomic particles that have no charge. In the case of aluminum, the mass number is 27. * If an atom has an abnormal number of electrons or neutrons, it may have different The smallest of the permanent core particles of an atom is the electron. All of its isotopes are radioactive. How many valence electrons does californium have? The atomic number of an element is equal to the number of protons and electrons in that element. To know the number of electrons, you need to know the atomic number of that element. Thechemical symbolfor Fluorine isF. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. Bai et al. (1 kg = 2.2046 lbs) 2.16 x 10 5 lb 4.45 x Answered over 90d ago Francium is a highly radioactive metal that decays into astatine, radium, and radon. Osmiumis a chemical element withatomic number76which means there are 76 protons and 76 electrons in the atomic structure. Neutron = 51 23 = 28. Holmium is a relatively soft and malleable silvery-white metal. Al-26 is an aluminum isotope with a half-life of 730,000 years. How can you find protons, neutrons and electrons from an atomic number? One atom of aluminum has 13 protons and 14 neutrons. Thechemical symbolfor Ruthenium isRu. Caesium is a soft, silvery-gold alkali metal with a melting point of 28.5 C, which makes it one of only five elemental metals that are liquid at or near room temperature. Franciumis a chemical element withatomic number87which means there are 87 protons and 87 electrons in the atomic structure. Atoms can usually be divided into two parts. How many protons are in an atom of copernicium? Protons are the positively charged particles in an atom, while neutrons are subatomic particles that have The mass of the electron is often ignored because this mass is too small. Einsteiniumis a chemical element withatomic number99which means there are 99 protons and 99 electrons in the atomic structure. Goldis a chemical element withatomic number79which means there are 79 protons and 79 electrons in the atomic structure. The number of electrons and protons in an atom is the same but the number of neutrons is different. 2) You may not distribute or commercially exploit the content, especially on another website. Bariumis a chemical element withatomic number56which means there are 56 protons and 56 electrons in the atomic structure. The size and mass of atoms are so small that the use of normal measuring units, while possible, is often inconvenient. What are the Physical devices used to construct memories? Curiumis a chemical element withatomic number96which means there are 96 protons and 96 electrons in the atomic structure. Also, the exact position of an element is determined in the periodic table. WebAluminium (Al) Carbon Dioxide (CO2) Nitrogen (N) Sand. Sulfuris a chemical element withatomic number16which means there are 16 protons and 16 electrons in the atomic structure. Web1 minute. Lead is widely used as a gamma shield. Also, neutrino, antineutrino, positron, and mason are located in an atom as temporary particles. Thechemical symbolfor Iridium isIr. Thechemical symbolfor Lanthanum isLa. Boronis a chemical element withatomic number5which means there are 5 protons and 5 electrons in the atomic structure. Whena hydrogen atomremoves an electron from its orbit, the positively charged particle that remains is called proton. How many electrons are there in the outer electron shell of a neutral Al atom? Titanium can be used in surface condensers. Uranium has the highest atomic weight of the primordially occurring elements. How many protons, neutrons, and electrons does silicon have? Therefore, a vanadium atom contains twenty-three protons. Required fields are marked *. Mendelevium is a metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities. Thechemical symbolfor Radium isRa. Hydrogen gas can be produced by reacting aluminum with sulfuric acid. The number of neutrons is determined by subtracting the number of protons in the element from the elements mass number. Protons, neutrons and electrons of all elements, Electron Configuration Calculator Get answer within 1 sec. Hopefully, after reading this article you will know the details about this topic. Chromiumis a chemical element withatomic number24which means there are 24 protons and 24 electrons in the atomic structure. How many protons are there in the C-13 isotope? Under standard conditions, it is the lightest metal and the lightest solid element. Mercuryis a chemical element withatomic number80which means there are 80 protons and 80 electrons in the atomic structure. * If an atom has an abnormal number of electrons or neutrons, it may have different chemical and physical properties than the typical form of the element. Almost all the mass of the atom is accumulated in the nucleus. Scientist Chadwick discovered neutrons in 1932. Vanadium has only two electrons in its last orbit. We must always remember that the atomic number and the number of protons of an element are equal. We know that an equal number of protons of atomic number are located in the nucleus of the element and electrons equal to protons are in orbit outside the nucleus. 3) Deux noyaux sont isotopes lorsqu'ils possdent le mme nombre de protons mais un nombre de neutrons diffrents. Therefore, a vanadium atom has twenty-eight neutrons. Thechemical symbolfor Neptunium isNp. Californiumis a chemical element withatomic number98which means there are 98 protons and 98 electrons in the atomic structure. There are over 100 different borate minerals, but the most common are: borax, kernite, ulexite etc. Therefore, the number of negatively charged electrons orbiting in its orbit is equal to the number of positively charged protons in the nucleus. The properties of the elements and their compounds depend on theelectron configuration. Thorium is commonly found in monazite sands (rare earth metals containing phosphate mineral). Thechemical symbolfor Yttrium isY. Yttrium is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a rare-earth element. It is the fifth most abundant element in Earths crust and the third most abundant metal, after iron and aluminium. How many neutrons are there in an atom of lead whose mass number is 208? Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. Number of neutrons is 14 in Aluminium. What are the properties of protons neutrons and electrons? Aluminum-27 is the only stable isotope of this metal, and it has 14 neutrons, 13 protons and has 13 electrons in the neutral atom. (1969), Discoverer: Scientists at Dubna, Russia (1967)/Lawrence Berkeley Laboratory (1970), Discoverer: Armbruster, Paula and Muenzenberg, Dr. Gottfried, Element Category: unknown, probably a transition metal, Discoverer: David Anderson, Ruhani Rabin, Team Updraft, Element Category: unknown, probably a post-transition metal, Discoverer: Hisinger, Wilhelm and Berzelius, Jns Jacob/Klaproth, Martin Heinrich. Therefore, the number of negatively charged electrons orbiting in its orbit is equal to the number of positively charged protons in the nucleus. Thechemical symbolfor Hafnium isHf. On the other hand, nuclei with an odd number of protons and neutrons are mostly unstable. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226. Note that, eachelementmay contain moreisotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. So, it is possible to determine the properties of vanadium from the electron configuration. Protons are the permanent core particles of an atom. Why do people say that forever is not altogether real in love and relationship. How many neutrons, protons, and electrons in zinc? Therefore, the total number of protons and neutrons is called the atomic mass number. How many protons, neutrons and electrons are in tungsten? Lead is a heavy metal that is denser than most common materials. The difference between the mass number of the zinc atom and the number of protons is thirty-five. Germaniumis a chemical element withatomic number32which means there are 32 protons and 32 electrons in the atomic structure. Thechemical symbolfor Cadmium isCd. WebAluminium-26 ( 26Al, Al-26) is a radioactive isotope of the chemical element aluminium, decaying by either positron emission or electron capture to stable magnesium -26. How many neutrons does darmstadtium have? It is a soft, silvery-white alkali metal. Thechemical symbolfor Berkelium isBk. WebThe basic parts of an atom include the nucleus, protons, neutrons, and electrons. Discoverer: Davy, Sir H. and Thnard, L.-J. Quality education can build a beautiful society. Nobelium is the tenth transuranic element and is the penultimate member of the actinide series. Also to help understand this concept there is a chart of the nuclides, known as a Segre chart. Part 1 Part 1 of 2: Calculating Protons, Electrons, and NeutronsGet a periodic table of elements. The periodic table is a chart that organizes elements by their atomic structure.Find your element on the periodic table. The table orders elements by atomic number and separates them into three main groups: metals, non-metals, and metalloids (semi-metals).Locate the elements atomic number. More items It is the heaviest essential mineral nutrient. An atom is the smallest particle of an element that has no independent existence but is directly involved in chemical reactions as the smallest unit. Uranium is a silvery-white metal in the actinide series of the periodic table. How many protons, neutrons and electrons does sodium have? Webnumber of protons neutrons and electrons in an atom Jul 27 2022 web jun 2 2019 number of electrons. The number of protons in an isotope atom does not change but the number of neutrons does. How will you find out the total number of electrons? Get access to this video and our entire Q&A library. Al-28 has a much shorter half-life of 2.3 minutes. 113Cd has specific absorption cross-section. How many neutrons does europium 151 have? Chemistry, 22.06.2019 12:00. One atom of aluminum has 13 protons and 14 neutrons. including images, pictures, photos, wallpapers, and Videos also Article.In these page, we also have variety of images During the formation of a bond, vanadium donates two electrons of the last shell to form bonds and turns into a vanadium ion(V2+). The mass of a stable 64Zn is about 64 (63.9291422), 66Zn is about 66 (65.9260334), 67Zn is about 67 (66.9271273), 68Zn is about 68 (67.9248442), and 70Zn is about 70 (69.9253193). To determine the properties of an element, it is necessary to arrange the electrons of that element. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Elemental sulfur is a bright yellow crystalline solid at room temperature. Edit Report an issue 30 seconds. Europiumis a chemical element withatomic number63which means there are 63 protons and 63 electrons in the atomic structure. Thechemical symbolfor Aluminum isAl. Therefore, a zinc atom contains thirty electrons in its orbit. How many electrons does californium have? Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. We assume no responsibility for consequences which may arise from the use of information from this website. Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. Thallium is a soft gray post-transition metal is not found free in nature. Thechemical symbolfor Rubidium isRb. Many other rare types of decay, such asspontaneous fissionor neutron emission are known. WebIf you should be looking for How Many Protons, Neutrons, And Electrons Are In Magnesium?, you have come to the proper place.We have 6 more Images about How Many Protons, Neutrons, And Electrons Are In Magnesium? Lanthanum is a soft, ductile, silvery-white metal that tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. Although classified as a rare earth element, samarium is the 40th most abundant element in the Earths crust and is more common than such metals as tin. The aluminum atom has 13 electrons and protons and also 14 neutrons. Polonium is a rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth. Every atom is made up of three elementary particles. The symbol used to represent the element aluminum is 'Al. The remaining isotopes of vanadium are highly unstable and their half-lives are very short. Zinc is the 30th element of the periodic table so its atomic number is 30. The mass of the electron is often ignored because this mass is too small. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. What group on the periodic table is the least reactive and why? An atom has an atomic number of 12 and a mass number of 25. how many neutrons does the atom have? Thechemical symbolfor Mercury isHg. A Question 47 ( 2 points) Platinum (Pt) has an atomic number of 78 and an atomic mass of 195. Why is it important for us to know the number of electrons and protons? Its boiling point is the lowest among all the elements. Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily unreactive substances become reactive; for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning. Thechemical symbolfor Californium isCf. Atomic mass ofAluminiumis26.9815 u.. It is even less abundant than the so-called rare earths. These have similar chemical properties, but palladium has the lowest melting point and is the least dense of them. The half-life of 26 Al is 7.17 10 5 (717,000) years. Scandium is a silvery-white metallic d-block element, it has historically been sometimes classified as a rare-earth element, together with yttrium and the lanthanides. WebElectrons, protons, and neutrons are located in the atom as permanent particles. We already know that the nucleus is at the center of the atom. Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name, kohl. In the periodic table, potassium is one of the alkali metals. How many protons and neutrons are in magnesium? Main purpose of this project is to help the public learn some interesting and important information about chemical elements, ionizing radiation, thermal engineering, reactor physics and nuclear energy. For12C the atomic mass is exactly 12u, since the atomic mass unit is defined from it. Neodymium is a soft silvery metal that tarnishes in air. Some atoms of aluminum do not have 14 neutrons. Atomic nuclei consist of protons and neutrons, which attract each other throughthenuclear force, while protons repel each other viatheelectric forcedue to their positive charge. And to arrange the electrons, you must know the number of electrons in that element. Indiumis a chemical element withatomic number49which means there are 49 protons and 49 electrons in the atomic structure. The atomic mass is carried by the atomic nucleus, which occupies only about 10-12of the total volume of the atom or less, but it contains all the positive charge and at least 99.95% of the total mass of the atom. Thechemical symbolfor Magnesium isMg. Magnesium is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (group 2, or alkaline earth metals) of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure.

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