Question

what is mean by atomic mass number ? explain how the atomic number and mass number of carbon are 6 and 12 respectively.

Answer 1

the answer of your question is


atomic no (z) => numbers of proton

atomic mass(A) => numbers of proton + numbers of neutrons


carbon has 6 protons and 6 neutrons

so z= 6
A => 12



thank you

Answer 2

Answer:

hope this answer helps you