The total number of protons in an atom is called
- The total number of protons and neutrons in an atom is called
- The total number of protons and neutrons in the nucleus of an atom is called
- The total number of protons and neutrons in an atom is called its
- The total number of protons and electrons in an atom is called
- The total number of protons in the nucleus of an atom is called
- The total number of protons and neutrons present in an atom is called
- The total number of protons present in the nucleus of an atom is called
- The total number of protons and neutrons in the nucleus of an atom is called its
- The total number of protons plus neutrons in an atom is called the mass number
- The total number of protons and neutrons in the nucleus of an atom is called its dash
- The total number of protons and neutrons present in the nucleus of an atom is called
- The total number of protons plus the number of neutrons in an atom is called the
- The total number of protons and neutrons present in an atom of an element is called
- The total number of protons and electrons present in the nucleus of an atom is called
- 1 the total number of protons plus neutrons in an atom is called the mass number