Sodium, Na, belongs to the alkali metals of Group 1 in the Periodic Table.
Sodium belongs to the alkali metal family.
hydrogen family
carbon family
Hydrogen
Your question does not make sense. Sodium is an element. It is a member of the "alkali metal" group of elements. (Group 1 in the Periodic Table.)
The element below sodium with atomic number 11 is lithium. Lithium is a metal in the same alkali metal family as sodium.
Metals
AKEM
Fermium is a member of the actinoids family.
group 16
the transition metals.
noble gases