Group 1: Alkali metals and Hydrogen.
Group 10: Nickel group.
Group 11: Copper group.
Group 12: Zinc group.
Group 13: Boron group.
Group 14: Carbon group.
Group 15: Pnictogens.
Group 16: Chalcogens.
Group 17: Halogens.
Group 18: Noble gases.
Group 2: Alkaline earth metals.
Group 3: Scandium group.
Group 4: Titanium group.
Group 5: Vanadium group.
Group 6: Chromium group.
Group 7: Manganese group.
Group 8: Iron group.
Group 9: Cobalt group.
The 18 vertical columns of the periodic table representing groups of elements.