Main group element

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 1A- 2A and 3A- 8A (also known as S and P block elements)

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. Main group elements are sometime called the representative elements.

عنصر مجموعة رئيسي 主族元素