silicon belongs in the carbon family of the periodic table of elements
Krypton belongs to the Inert or Noble gases group or chemical family in the Periodic Table.
A family is a column in a periodic table; all elements in a family have similar physical and chemical properties, because they have the same numbers of valence electrons (outer electrons).
Noble gasses
Uranium is in the family of actinoids.
Iodine is in the 7A column of the periodic table, a member of the halogen family.
The noble gases.
They have the same amount of valance electrons.
barium, berkelium, beryillium, bismuth, bohrium, boron, bromine
if you search up the periodic table, you wil find it in there. and so it belongs to the non metal chemical group.
by the vertical family (where it is located)
Group 15, over to the right.