Page No 35: - Chapter 3 Atoms & Molecules class 9 ncert solutions Science - SaraNextGen [2024-2025]

Updated By SaraNextGen

On April 24, 2024, 11:35 AM

Question 1:

Define atomic mass unit.

Answer:

Mass unit equal to exactly one-twelfth  the mass of one atom of carbon-12 is called one atomic mass unit. It is written as ‘u’.

Question 2:

Why is it not possible to see an atom with naked eyes?

Answer:

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