Answer :

Answer:

1s ↑↓

2s ↑↓

2p ↑↑ ↑↑ ↑↑

Explanation:

In the diagram:

The arrows represent electrons.

Each orbital (labeled 1s, 2s, and 2p) is filled with electrons according to the electron configuration of

Mg

2

+

Mg

2+

.

The arrows are pointing up or down to indicate the spin of each electron.

This diagram shows that

Mg

2

+

Mg

2+

 has lost its two valence electrons, resulting in a stable electron configuration with a filled 2p sublevel.