Question

1. Define the following terms:

i. Element

Answer 1

Part 1: Definition of element:

• Element is defined as a pure substance that cannot be broken down into simpler substances by any chemical means.
• There are 118 elements known to us.

Part 2: Examples of elements:

Some examples of elements are carbon $\left(\mathrm{C}\right)$, hydrogen $\left(\mathrm{H}\right)$, iron $\left(\mathrm{Fe}\right)$, calcium $\left(\mathrm{Ca}\right)$ etc.