How do we find an atom's mass number?

Question

Rudy Romero

Physics

9 August, 14:59

How do we find an atom's mass number?

+3

Answers (1)

Know the Answer?

Irvin Oconnell · Answer 1

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.