Answer:
The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
Explanation:
True! they're the lowest in mass of all parts of the atom
Answer:
<em>Well, I think the best answer will be is </em><em>B) Gravity. Good luck!</em>
