What are the elements that belong in the halogen family of elements?

All of the elements in the 17th column in the P.T.

The halogens are: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). They are the 2nd column from the right in the periodic table.

An element must have full valence shell in its neutral state, thus having 2, 10, 18, 36, 54, 86, or 118 protons. This places it into the 8A group which are the halogens.

Yes.

group 4 (transition element)