# Question #8c664

Sep 13, 2017

The first two, $\text{H"_2}$ and $\text{F"_2}$ are diatomic molecules composed of two atoms of the same element.
The second two, $\text{CO"_2}$ and $\text{CF"_4}$, are compounds formed by the covalent bonding of atoms of two or more elements.