Iron is a transition metal found in the d block of the periodic table.
Group 7 of the periodic table.
Group 17 or halogens
Tellurium is a metalloid that is in group 16 on the periodic table.
It belongs to group 18 in the periodic table.
Group 16 of the Mendeleev periodic table (chalcogens).
Oxygen resides in Group 16 on the Periodic Table, otherwise known as the Chalcogen Family.
Seaborgium: group 6, period 7 - in the periodic table of Mendeleev.
Potassium belongs to the alkali metal family on the periodic table. It is in Group 1, which is the first column of the periodic table.
Krypton belongs to the Inert or Noble gases group or chemical family in the Periodic Table.
Together with bromine and fluorine they belong to the 'halogenes', group 7 in the periodic table.
Scandium is considered a transition metal; group 3, period 4 in the periodic table of Mendeleev.
Hassium is placed in the period 7 and group 8 (iron group) of the periodic table of Mendeleev.It is a member of the transactinoids family.