period
Another name for Group 17 (VIIA) Elements is Halogens.
the "A" elements
A slender upright stucture,cloumn
They are called lanthanides (as well as scandium and yttrium).
a family
Group 18 elements.
the chalcogen family
I don't think there is another name for elements but you can say a subtance that contain one atom
Periods
It is a crowd or either a load
A roman numeral in parentheses follows the name of the metal... apex
Salt formers / group 17 elements. The elements of Group VII (or group 17) of the Periodic Table are called halogens, which means "salt formers"