Question

how to find mass number of carbon​

Answer 1

Answer:

To calculate the atomic mass of a single atom of an element, add up the mass of protons and neutrons.

Example: Find the atomic mass of an isotope of carbon that has 7 neutrons. You can see from the periodic table that carbon has an atomic number of 6, which is its number of protons. The atomic mass of the atom is the mass of the protons plus the mass of the neutrons, 6 + 7 .

Answer 2

atomic number doubles of mass number .......mate

Explanation:

example.carbon : 6 ,mass number :6+6=12.....but not all some exceptions ....only few ....learn that.....thats all .....hope its help u ....mate........TC