Question

1. choose the best answers.

oxygen will __ 2 electrons to form a ion called a(n) __.
share; negative; cation
gain; negative; anion
lose; positive; cation

1. choose the best answers.

magnesium and oxygen will form a(n) ____ bond together.
covalent
ionic
metallic

Explanation:

• For question 14: Oxygen has 6 valence electrons and needs 2 more to achieve a stable octet. Gaining electrons gives it a negative charge. An anion is a negative - charged ion.
• For question 15: Magnesium is a metal (loses electrons) and oxygen is a non - metal (gains electrons). Ionic bonds form between metals and non - metals.

Answer:

1. B. gain; negative; anion
2. B. ionic