A certain atom has atomic number Z = 21 and atomic mass number A = 44.
(a) How many protons and neutrons are in the nucleus?
Number of protons =
Number of neutrons =
(b) What is the approximate radius of the nucleus of this atom?
rnucleus = m
(c) What is the magnitude of the electrostatic force of repulsion between two protons on opposite sides of the diameter of the nucleus.
F = N