Question

How to find ATOMIC MASS of any element?

Answer 1

To calculate the atomic mass of a single atom of anelement, 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.

Answer 2

Find the atomic number of the element or isotope. The atomic number is the number of protons in an element, and never varies. ...Find the number of neutrons in the nucleus. ...Add the proton and neutron count.