Question

WHAT IS AN ATOM?
please answer​

Answer 1

Answer:

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

Explanation:

Answer 2

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An atom consist of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical attraction; the number of protons determines the identity of the element.

• An atom is no longer after the discovery of protons, electrons and neutrons.
• An atom a fundamental piece of matter.
• Atoms consist of a nucleus made of protons and neutrons orbited by electrons.
• An atom is a smallest particle that can take part in a Chemical reaction.
• The mass of an Atom can be converted into energy by E = mc².

I hope this will helps you.