Across
- 2. anything related to atoms
- 4. a fusion of two or more elements
- 9. discoverer of radium
- 10. the study of chemicals
Down
- 1. the first name of the discoverer of polonium
- 3. a component in co2
- 5. a gas we breath
- 6. a element with two atoms
- 7. arranged in shells
- 8. a chemical with only one type of atom