Atomic structure

Decide whether the following statements are true or false. Explain the reason if you find them false:
a) An atom is different from an ion.
b) Atoms have more electrons than protons.
c) Two cations attract each other only if they are in contact.
d) Carbon atoms can be better conductors than potassium atoms.

If Z = 47 and A = 108, how many electrons, protons, and neutrons does this element have?

An element has an atomic number of 10 and an atomic mass of 20. How many neutrons does this element have?

The nucleus of an atom is composed of uncharged particles as well as the following:
a) Electrons
b) Protons
c) Neutrons
d) Ions