nickelback
Nickel is #28 on the periodic table; its symbol is Ni.
Oxygen is in the group 16 of the periodic table of Mendeleev - chalcogenides group.
Another name for a group on the Periodic Table is a column.
Group 7 in the periodic table is also known as the halogens.
Xenon is in group 18
Alkali metals
halogens
it is 35
Halogens
The elements between group 2 and 13 are called Transition elements. They are placed in center of periodic table.
Carbon's name is C on periodic table. It belongs to group no. 14.
Another name for a subgorup on the periodic table is also called a group, or family.