Question

1.what is an atom

I need explanation​

Answer 1

Atom is the smallest particles that make up the properties and characteristics of everything in the world.

Answer 2

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.

Step-by-step explanation: