When the ion Sr2+ forms,
A) the Sr atom loses 1 electron and now has the same number of electrons as Kr
B) the Sr atom loses 1 electron and now has the same number of electrons as Xe
C) the Sr atom loses 2 electrons and now has the same number of electrons as Kr
D) the Sr atom gains 2 electrons and now has the same number of electrons as Kr
E) the Sr atom loses 3 electrons and now has the same number of electrons as Kr
Answer: C