Question

c. What is meant by atomic mass
number ? Explain how the atomic
number and mass number of carbon are
6 and 12 respectively.​

Answer 1

Answer:

Atomic Mass Number : It is the sum of total number of protons and neutrons present in a nucleus. Atomic mass number = number of protons + number of neutrons. ... Atomic number(Z) = number of protons = number of electrons = 6. Mass number(A) = number of proton + number of neutrons = 6 + 6 =12.

Answer 2

Answer:

The mass number (symbol A, from the German word Atomgewicht [atomic weight]), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus.