Question

When a Mg atom becomes an ion, it ____________.
Select one:
a. gains 2 electrons
b. loses 12 electrons
c. loses 2 electrons
d. gains 10 electrons

Answer 1

@Hoslos

Answer 2

You base from the group of the atom. If it is group 1, it loses 1, if it is from 2, it loses 2 and goes on like that successively. But from groups 4 to 8 they gain from 4 to 1, respectively. Hence, Mg loses 2.