Question

1:-define the atomic mass unit.
2:- why is it not possible to see an atom with naked eyes.​

Answer 1

Explanation:

1. Definition of atomic mass unit: a unit of mass for expressing masses of atoms, molecules, or nuclear particles equal to ¹/₁₂ the mass of a single atom of the most abundant carbon isotope 12C.
2. The size of an atom is so small that it is not possible to see it with naked eyes. Also, atom of an element does not exist independently.

Answer 2

Answer:

Defined of 1:-

a unit of mass used to express atomic and molecular weights, equal to one twelfth of the mass of an atom of carbon-12.

ANSWER IN 2:-

The size of an atom is so small that it is not possible to see it with naked eyes. Also, atom of an element does not exist independently