Lithium fluoride is the compound name
C. An atom of helium has its valence electrons in its first energy level, it wouldn't and can't satisfy the Octet rule as it only has 2 electrons, but with 2, it has a full shell, as the first energy level can hold only 2 electrons.
Liquid because it is changing to that <span />
False, I’m going from what I know but if it’s correct pls heart this
Each chemical element is made up of one kind of atom, so the answer is A
