Protons

Q.

Give two main differences between cathode rays and canal rays.

Q. Which of the following statements are correct regarding the electrical charge of electrons and protons?

1. Electrons are positively charged.
2. Electrons are negatively charged.
3. Protons are positively charged.
4. Protons are negatively charged.

Q. Which subatomic particles have approximately the same mass?

1. Electrons and neutrons
2. Protons and electrons
3. Protons and neutrons
4. Electrons and nucleons