The electron configuration for helium (he) is shown below.        1s2              which diagram shows the correct distribution of electrons in the electron shells of a helium atom?

The diagram that shows the correct distribution of electrons in the electron shells of a helium atom is:

       ↑↓
1s   __

This is two electrons with opposed spin in the same orbital. The arrows with opposed directions are used to represent the opposed spins.

16- counting by fours

Less stable  hope this