share two covalent bonds. have a definite shape. share a pair of neutrons. have two free electrons.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: The atoms that make up oxygen gas
Possibilities:
- share two covalent bonds.
- have a definite shape.
- share a pair of neutrons.
- have two free electrons.

share two covalent bonds.