Group (periodic table)

column of elements in the periodic table of the chemical elements
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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 MetalsEdit

See Alkali metal

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

Alkaline Earth MetalsEdit

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

Transition groupsEdit

See Transition metals