The sum of protons and neutrons is equal to
- The sum of protons and neutrons in an atom equal to
- The sum of number of neutrons and protons is equal to
- Equal to the sum of protons and neutrons in nucleus
- Approximately equal to the sum of protons and neutrons in an atom
- Exactly equal to the sum of protons a n d neutrons in an atom
- The sum of the neutrons plus protons equal to
- The sum of the protons and neutrons in an atom is about equal to the atom's select
- Atomic mass of elements is equal to the sum of protons and neutrons
- Which term is equal to the sum of protons and neutrons in the nucleus of an atom
- N + n
- The number of protons in an atom identifies it as an atom of a particular element