If Mg has 12 protons & 12 neutrons, what is its atomic number & mass number
If Mg has 12 protons & 12 neutrons, what is its atomic number & mass number
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Atomic number of any element is equal to protons present in atom.
Hence atomic number = number of protons= 12
Atomic mass is sum of protons and neutrons present in atom.
Therefore mass number = number of protons (p) + number of neutrons (n) = 12 + 12 = 24
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