Question

When electrons are removed from the outermost shell of a calcium atom, what does the atom becomes?

Answer 1

AN ION...........?

Explanation:

The electronic configuration of `Ca` metal, `Z=20`, is `1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^2`. When the valence electrons are removed, calcium reverts to a `[Ar]` configuration. Does this address your question?