Across
- 3. subatomic particle with a positive charge
- 6. subatomic particle with a negative charge
- 9. energy from inside the earth
- 11. column of the periodic table
- 13. mixture of two or more elements
Down
- 1. subatomic particle with a neutral charge
- 2. how well a substance can transmit electricity
- 4. second last group of the periodic table
- 5. last group of the periodic table
- 7. center of an atom
- 8. how acidic or basic a substance is
- 10. energy from charged particles
- 12. row of the periodic table