Group (periodic table)

set of chemical elements with common periodic properties, appearing as column in the periodic table

A group is any column on the periodic table. Elements in the same group usually have similar properties, because they have the same number of electrons in the outermost electron shell. There are eight main groups of elements, numbered 1, 2, and 13-18. The other ten groups are transition metals:

Alkali Metals

change

See Alkali metal

The most reactive metals are Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr)

  • never include hydrogen.

Alkaline Earth Metals

change

See Alkaline earth metal. They are Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), Radium (Ra)

Transition groups

change

See Transition metals. Transition Metals are the most number of elements in the periodic table. They are Iron (Fe), Copper (Cu), Zinc (Zn), Chromium (Cr), Cobalt (Co), Nickel (Ni), Manganese (Mn), Mercury (Hg), Scandium (Sc), Titanium (Ti), Vanadium (V), Silver (Ag), Gold (Au), Cadmium (Cd), Tungsten (W), Platinum (Pt), Yttrium (Y), Molybdenum (Mo) and others.

The noble gases

change

The noble gases are the 18th group in the periodic table. They are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn). They were previously called Inert gases.