Question

Question #be740

Answer 1

+3

Explanation:

The 5 protons means that the element is Boron atomic number 5

To be stable Boron would lose the `2 s^2 2p^1` electrons to achieve the stable electron configuration of Helium `1s^2`

This leaves Boron with 2 electrons and 5 protons. This gives

`2 e^"-" + 5 p^+ = 3^+`