Radiation is energy that moves from one place to another in the form of waves or particles. It can be described as energy or particles from a source that travel through space or other mediums. Radiation has both wave-like and particle-like properties and can be classified into two types: ionizing and non-ionizing radiation.

• Ionizing radiation: This type of radiation has enough energy to remove tightly bound electrons from atoms, creating ions. Examples of ionizing radiation include X-rays, gamma rays, alpha particles, beta particles, and neutrons.

• Non-ionizing radiation: This type of radiation has enough energy to move atoms in a molecule around or cause them to vibrate, but not enough to remove electrons. Examples of non-ionizing radiation include visible light, heat, microwaves, and radio waves.

Radiation is present in our everyday lives, and some of the most familiar sources of radiation include the sun, microwave ovens, and radios. However, exposure to high levels of ionizing radiation can be harmful to human health and the environment. Different types of radiation require different protective measures, and the risk associated with radiation exposure depends on the type of radiation and the dose received.

Radiation has many beneficial applications, such as in cancer treatment and determining the composition of materials through neutron activation analysis. However, it is important to take specific actions to protect people and the environment from its effects when there are risks associated with its use.