Across
- 2. smallest part of an element
- 5. a mixture of two or more metals
- 6. particle with no charge in the nucleus
- 7. pure substance chemically combined
- 10. an atom that lost or gained an electron
Down
- 1. two or more substances mixed together
- 3. anything that has mass and volume
- 4. particle with a negative charge
- 8. subatomic particle with a positive charge
- 9. center of the atom