Nurturing Life Sciences
#Id: 8208
#Id: 7734
#Section 2: General Biology
The number of electrons in a neutral atom is equal to the number of protons.
#Id: 7735
The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
#Id: 7834
#Id: 7833
#Id: 7832