Question

wht is meant by atomic mass number?explane how the atomic number and mass no of carbon are 6 &12 respectily​

Answer 1

Answer:

Atomic number of an element refers to the number of electrons or protons present in that element. ... Carbon has 6 protons, 6 electrons and 6 neutrons. So the atomic number is 6 as the number of protons is 6. The mass number is 12 as the sum of protons and neutrons is 12.