Answer
a. False
b. False
c. False
d. True
e. False
Work Step by Step
a. Neutron is also present in the nucleus which does not have any charge.
b. The atom have a nucleus which contains almost all of it's mass and electrons revolves around it.
c. Almost all of the mass of atom is present in the nucleus.
d. Yes, the nucleus have very less volume compared to atom.
e. No, the number of electron must be equal to number of proton in neutral atom.