a few easy chemistry questions true or false please help!!!?

[Mathew B]

Please put true or false for the following questions only if you are sure of the answer and you really want to help me, thanks so much to all who answer!!!:

1) A neutral atom carries electrical charge.

2) Most of the mass of the atom is made of protons and neutrons.

3) The original atomic theory was entirely correct.

4) All atoms in an element have the same atomic number.

5) Avogadro's number can be used to find the number of atoms in a given sample of an element.

6) The smallest particle of an element that exhibits its charactertics is an atom.

7) A photon is a quantum of light energy.

8) Dalton gave us the atomic theory.

9) Aristotle believed matter was made of atoms.

10) Deuterium is an isotope of hydrogen.