What makes calcium and nitrogen different list two differences

the difference in electronegativity is so large (2.04) that the bonding electrons spend almost all their time on the nitrogen atom.

Explanation:

Because calcium loses 2 electrons to become Ca2+, and nitrogen gains 3 electrons to become N3−, you need two calcium atoms and three nitrogen atoms in order to form a neutral compound.

b

explanation:

mitosis

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.