Main group element

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In chemistry and atomic physics, main group elements are elements in groups (periodic columns) whose lightest members are represented by hydrogen, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and helium as arranged in the periodic table of the elements. Main group elements include elements in groups 1 , 2 and 13-18

The main group elements (with some of the lighter transition metals) are the most abundant elements on the earth, in the solar system, and in the universe.

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