EVERYDAY SCIENCE

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: -Explain that all matter on Earth exists in the form of a solid, liquid, or gas, and that solids, liquids, and gases are all made of extremely tiny particles called atoms and molecules. Tell students that an atom is the smallest building block of matter and a molecule is two or more atoms connected together.

Detailed explanation-3: -Atoms are the smallest units of matter that have all the characteristics of an element. Atoms combine to form molecules. Atoms are composed of smaller particles known as protons, neutrons, and electrons.

Detailed explanation-4: -Despite the discovery of sub-particles like electrons, protons and neutrons, an atom continues to remain the fundamental particle because of the fact that it is the smallest unit that exhibits the chemical properties of an element.

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.