Atomic mass is the number of protons and electrons
- Atomic mass number of protons electrons and neutrons
- The average atomic mass is the number of protons and electrons found in the atom
- Atomic mass is equal to the number of protons and electrons
- Atomic mass is the sum of the number of protons and electrons
- Is the relative atomic mass the number of protons and electrons
- The atomic mass is the total number of protons and electrons in the nucleus
- Abbreviation for atomic mass units the number of protons neutrons and electrons
- The atomic mass of an element is the number of protons electrons
- An atomic mass is the number of protons plus the number of electrons
- Atomic mass is equal to the sum of the number of protons electrons and neutrons of an atom
- The atomic mass of an element is combined mass of the number of protons neutrons and electrons