Question

Why will a balloon filled with helium float in air?
Responses

Helium is as dense as air.
Helium is as dense as air.

Helium is denser than air.
Helium is denser than air.

Helium is a diatomic molecule.
Helium is a diatomic molecule.

Helium is less dense than air.

Answers

GPT 3.5
Helium is less dense than air.