Question

define an atom ??????​

Answer 1

Answer:

the basic building blocks of matter” or the smallest particle of an element, which may or may not have an independent existence but always takes place in a chemical reaction is called an atom.

Answer 2

Answer:

An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across.