Also, what are the three classes of elements?
Elements in different groups are lumped together in one of three classes, depending on their properties. The classes are metals, nonmetals, and metalloids.
What are the three main groups of elements on the periodic table?
The three main classes of elements are metals on the left side, metalloids on the staircase, and nonmetals on the right hand side.
What are the classification of elements in the periodic table?
Elements that lie in the same column on the periodic table (called a “group”) have identical valance electron configurations and consequently behave in a similar fashion chemically. For instance, all the group 18 elements are inert, or noble gases.