Question

1. diatomic molecules (like o₂) are held together by

□ polar covalent bonds
□ nonmetallic bonds
□ ionic bonds
□ non - polar covalent bonds

Explanation:

Diatomic molecules like \( O_2 \) consist of two identical oxygen atoms. In a covalent bond, if the two atoms are the same, the electrons are shared equally, resulting in a non - polar covalent bond. Polar covalent bonds occur when there is a significant electronegativity difference between two different atoms. Ionic bonds involve the transfer of electrons (usually between a metal and a non - metal), and there is no such thing as nonmetallic bonds in the context of bonding between atoms in a diatomic molecule like \( O_2 \). So \( O_2 \) is held together by non - polar covalent bonds.

Answer:

D. non - polar covalent bonds