Across
- 3. Positively charged ion
- 6. Mass per volume of a substance
- 8. Repeating trends in elements properties
- 14. Tendency to attract electrons
- 16. Starting substance in a chemical reaction
- 18. Nonreactive gases
- 21. Has a pH less than 7
- 22. Bond with shared electrons
- 23. Developed an early model of the atom
- 24. Elements bonded with themselves, O2
Down
- 1. The ability of a material to be stretched into a long wire
- 2. The outermost shell of electrons
- 4. 12C and 13C
- 5. The center of an atom
- 7. Negatively charged particle
- 9. Gold foil experiment director
- 10. A chemical substance that cannot be broken down
- 11. Properties of both metals and nonmetals
- 12. The smallest particle of an element
- 13. Group having seven valence electrons
- 15. Positively charged particle
- 17. Substance made during a chemical reaction
- 19. Negatively charged ion
- 20. A liquid’s resistance to flow
- 21. Name of first group elements