Respuesta :
I am pretty sure it is Alkaline metals, considering sodium, beryllium, magnesium, and lithium are in it.
Alkali metals are in group one [Li, Na, K,... Etc] Noble gases is in the last Group, 18[Ne,Ar,Kr,etc] and Halogens are group 17, [F,Cl,Br, etc] and transition metals are all metals that aren't in group 1 or 2. [Sc,Ti,Nb, etc]