SSC MTS EXAM

Detailed explanation-1: -Atom: (1)Atoms are the building block of matter. (2)An atom may be defined as the smallest particles of the element which may or may not have independent existence. (3)However, it is the smallest particles which take part in chemical reactions. Therefore, an atom is a basic unit of matter.

Detailed explanation-2: -The basic unit of matter is the atom. Atoms are defined as the building blocks of matter that contain a nucleus consisting of protons and neutrons with electrons orbiting the nucleus. Each element that exists in the periodic table consists of a different combination of protons, neutrons, and electrons.

Detailed explanation-3: -The atom is considered the basic building block of matter. Anything that has a mass-in other words, anything that occupies space-is composed of atoms.