1. What is the basic building block for all matter in the universe?

2. What is a substance called that consists of a single type of atom?

3. Around how long do Atoms last?

4. What two basic particles make up the nucleus of an atom?

5. What positively charged particle is located at the center of the atom in the nucleus?

6. What particle has no charge and affects the mass of the atom?

7. What particle has no charge, is formed by nuclear reactions, and travels at the speed of light?

8. What negatively charged particle spins around the nucleus of the atom?

9. What tiny particle is described using the terms up, down, top, bottom, charm, and strange?

10. An atom is said to have a neutral charge if it contains the same number of what two particles?