Help with chemistry and atoms and ions

Consider the sodium atom and sodium ion
a) write the chemical symbol of each
b) do these particles have the same number of nuclei?
c) do they have the same number of protons?
d) could they have different numbers of neutrons?
e) do they have the same number of electrons?

a) Sodium atom: Na
Sodium ion: Na+
b) Yes
c) Yes
d) Yes
e) No