Why are the elements in groups 1A-8A called the representative elements?

Answer 1

They follow a pattern for valence electrons.

Answer 2

S- and p- electrons fill in a regular repeating manner. Hence, elements in the s- and p-blocks have predictable patterns that represent a wide range of properties. Therefore, the s- and p-block elements are called the main-group, or representative, elements.

Non-metals, Alkali, Halogens

Answer 3

The elements in Groups 1A through 8A are called representative elements because they represent the majority of physical and chemical properties in the Periodic Table. They are a mix of liquids, solids and gases with various other properties.

Answer 4

Elements in groups 1A-8A are called representative elements because, as a group, they display a wide range of physical and chemical properties.

Answer 5

alummin(al)