Question

What is Atom?????????​

Answer 1

• Atoms are the smallest unit of ordinary matter and make up a chemical element.
• Every solid, liquid, gas, and plasma contains atoms, whether neutral or ionized.
• Atoms are very small, with a diameter of around 100 picometers.
• Quantum events are so small that standard physics can't anticipate their behaviour with any precision—as if they were tennis balls, for example.

Answer 2

An atom is a particle of matter that uniquely defines achemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. Each electron is negatively charged. ... The number of protons in the nucleus ofan atom is the atomic number for the chemical element