Answer:
A.
Explanation:
Higher temperature - more kinetic energy - more space between particles - higher volume.
An atom is the basic unit of all matter. The other answers are just pieces of an atom
<span>least to most ideal
NH3
CO
N2,
Ne
He
</span>n2, Ne, and He have dispersion forces, which are the weak intermolecular attraction for small molecules
. He is smaller than Ne, which is smaller than N2. CO and NH3 have dipole forces, which are stronger than dispersion forces. NH3 has hydrogen bonding.
H II regions. The ionized gas emits various colors of light and creates some of the most beautiful formations in the observable universe. These are slo regions where star formation is often taking plan and young stars are being formed from the remnants of older stars.