1. Which of the following will generally create a more stable nucleus?

(a) Having more nucleons.

(b) Having more protons than neutrons.

(c) Having a larger binding energy per nucleon.

(d) Having the same number of electrons as protons.

(e) Having a larger total binding energy.

2. There are 82 protons in a lead nucleus. Why doesn't the lead nucleus burst apart?

(a) Coulomb repulsive force doesn't act inside the nucleus.

(b) Gravity overpowers the Coulomb repulsive force inside the nucleus.

(c) The negatively charged neutrons balance the positively charged protons.

(d) Protons lose their positive charge inside the nucleus.

(e) The strong nuclear force holds the nucleus together.