1. | The smallest particle of an element that retains the properties of that element. |
A. |
B. |
C. |
2. | Have same atomic numbers but different atomic masses |
A. |
B. |
C. |
3. | Radioactive, has an unstable nucleus and undergoes radioactive decay. |
A. |
B. |
C. |
4. | Positively charged particle emitted from certain radioactive nuclei, consists of two protons and two neutrons. |
A. |
B. |
C. |
5. | High energy photons that are emitted by radioactive substances. |
A. |
B. |
C. |
6. | A fast moving electron emitted from certain radioactive nuclei, formed when a neutron decomposes into a proton and an electron. |
A. |
B. |
C. |
7. | Caused by the bombardment of a nucleus with subatomic particiles or small nucei. |
A. |
B. |
8. | Occurs in natural radioactivity where alpha or beta particles are emitted. |
A. |
B. |
9. | Subatomic particles are the smaller particles composing nucleons and atoms. |
A. |
B. |
10. | Radioactive elements with atomic numbers greater than 100. |
A. |
B. |