Across
- 4. negative charge
- 5. tendency of an atom
- 9. compactness of a substance.
- 10. variants of chemical elements
- 14. sharing of electrons between atoms
- 15. relating to an orbit
- 16. colorless, odorless gas
- 17. is a unit of length
- 19. identification of the substances
Down
- 1. part or aspect of somethingmetal
- 2. derived from living organism
- 3. maximum concentration of a solute
- 6. properties of an alkali
- 7. relating to, composed of
- 8. ratio of whole integers.
- 11. a stable subatomic particle
- 12. atomic number 19
- 13. unit of measurement
- 18. production of chemical compounds