If an atom has a full first shell and a full second shell an

If an atom has a full first shell, and a full second shell, and then one electron in the third shell, is it more likely to donate that electron, or accept other electrons until the third shell is full?

Solution

Answer:

The third shell dontaes the single electron. To become full of third shell 17 more electrons are needed, it is not possible to get 17 electrons, so the third shell donates the electrons.