GEOLOGY

Detailed explanation-1: -An atom is the smallest particle of an element, having the same chemical properties as the bulk element. The first accurate theory explaining the nature of matter was Dalton’s Atomic Theory: 1. All matter is composed of atoms, and atoms are indivisible and indestructible.

Detailed explanation-2: -An atom is the smallest particle of an element that can retain all the chemical properties. It is the indivisible unit of matter that can exist independently. It is a building block of matter.

Detailed explanation-3: -The smallest particle of an element is called an atom.

Detailed explanation-4: -The smallest unit of a compound is called a molecule.

Detailed explanation-5: -Electron: Electrons are negatively charged particles that revolve around the nucleus. Proton: Protons are the positively charged particles present in the nucleus. Neutrons: Neutrons are the neutral particles present in the nucleus along with protons.