Question #54872

1 Answer
Jun 8, 2017

It depends if it is an ion or in its natural state


Oxygen as an atom has a neutral charge, with 8 protons and 8 electrons. This means it has an electron shell with the configuration of 2,6.

However, when Oxygen bonds with other atoms, it gains two electrons and thus gains a charge of #2-#. This is because atoms naturally want their outer shells to be filled, and in Oxygen's case the filling number is 8 electrons. This means Oxygen needs to gain 2 electrons to have a full outer shell, and since electrons have a negative charge, and 2 are gained, Oxygen gains a charge of #O"" ^(2-)#.

I hope that helped!