Question

What is the resulting formula unit when magnesium and nitrogen bond

Answer 1

Magnesium (Mg) belongs to group II A in the periodic table with atomic number = 12

Mg Electron configuration = 1s²2S²2p⁶3s²

Nitrogen (N) belongs to group V A in the periodic table with atomic number = 7

N electron configuration= 1s²2s²2p³

Valence electrons for Mg = 2

Valence electrons for N = 5

Mg loses 2 electrons and N gains 3 electrons to complete its octet

Thus, the Formula unit when Mg and N bond is Mg₃N₂

Answer 2

The answer is Mg3N2.