Across
- 3. the element used by Rutherford during the Scattering experiment.
- 5. anything that has mass and occupies volume
- 6. the positive is called
- 8. the metal in the liquid state
Down
- 1. an indivisible and basic unit of matter
- 2. the only non-metal in the liquid state
- 4. defined as mass divided by volume
- 7. the center of an atom