Question

Choose all the answers that apply.

Calcium (Ca) has two electrons in its outermost shell. Calcium:

fills its shell by giving up two electrons
is a nonmetal
becomes a negatively charged ion
fills its shell by gaining six electrons
is a metal
becomes a positively charged ion

Answer 1

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1. Calcium is a nonmetal.
2. fills its shell by giving up two electrons.
3. becomes a positively charged ion.

Answer 2

Calcium is a metal and becomes a positively charged ion.

1. Calcium is an alkaline earth metal. It has two electrons in its outermost shell. So, in order to gain stability, it loses two electrons and finally holds complete octet in outermost shell.
2. On loss of two electrons, it gets charge of +2 and hence becomes cation.
3. Anion is a negatively charged ion and cation is a positively charged ion.