The answer is "More Stable."
Answer:
Gram atomic mass is another term for the mass, in grams, of one mole of atoms of that element. "Gram atom" is a former term for a mole. ... This is a dimensionless quantity (i.e., a pure number, without units) equal to the molar mass divided by the molar mass constant
Explanation:
Calcium. this is because Mg and calcium is in the same group. hence, they have similar chemical properties
