Which atom is more likely to gain electrons to satisfy the octet rule? * 1 point sodium magnesium aluminum phosphorus

Atoms naturally want 8 valence electrons to be stable. (Octet rule).

Sodium has 1 valence e-
Magnesium has 2
Aluminum has 4
And Phosphorus has 5.

Phosphorus is the most electronegative element listed, and the closest to 8 valence electrons, so it is the most likely candidate.

Answer:   d.  carbon dioxide.

The answer is d for this question