SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ma
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Mg
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Mn
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12
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14
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Detailed explanation-1: -Magnesium is a chemical element – a substance that contains only one type of atom. Its official chemical symbol is Mg, and its atomic number is 12, which means that magnesium has 12 protons in it nucleus.
Detailed explanation-2: -The atomic number of magnesium is 12 and of chlorine is 17.
Detailed explanation-3: -Chemical element, metallic, symbol Mg, situated in group IIa in the periodic table, atomic number: 12, atomic weight: 24, 312.
Detailed explanation-4: -An isotope is a compound with the same number of protons and electrons, but different number of neutrons. The three most natural isotopes of Mg are Mg-24, Mg-25, and Mg-26. Mg-24 (12 neurtrons) is 78.9%, Mg-25 (13 neutrons) is 10% and Mg-26 (14 neutrons) is 11.01%, of all the Magnesium found in nature.