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.
