Across
- 2. any of the elements lithium, sodium,potassium, rabidium, and francium
- 5. has a negative charge
- 7. any of the set of metallic elements
- 9. has no charge
- 10. the gaseous elements
- 11. they make up everything
- 16. particles that look the same
- 18. electrons in the outermost shell
- 19. reactivie non metallic elements
Down
- 1. cause chemical reactions
- 3. series of fifteen metallic elements from actinium to lawrencium
- 4. have a positive charge
- 6. a substance made up of 2 or more element chemically combined
- 8. the six chemical elements in column 2 of the periodic table
- 12. particles that look different
- 13. measurement of matter
- 14. an element that is not a metal
- 15. series fifteen metallic elements from lanthanum to lutetium
- 17. properties are internediate between those of metals