Question

Define element .?........ ​

Answer 1

Answer:

An element is a substance that is made entirely from one type of atom.

Elements are chemically the simplest substances and hence cannot be broken down using chemical reactions.

Example:-  Oxygen

                  hydrogen

Answer 2

In chemistry, an element is a pure substance which cannot be broken down by chemical means, consisting of atoms which have identical numbers of protons in their atomic nuclei. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number.