Across
- 3. metalic and non-metalic
- 6. metal and non-metal
- 8. combination of symbols that represent a compound
- 10. horizontal rows on the periodic table
- 11. how much an atom weights(amu)
- 12. positively charged particals
- 13. non-reversible
- 17. vertical columns on the periodic table
- 18. new substance
- 20. reversible
- 23. neutral partical in the nucleus of an atom
- 24. substances that react with another
Down
- 1. group 17 on the periodic table
- 2. the number of protons
- 4. group 18 in the periodic table
- 5. non-metal and non-metal
- 6. lost or gain of electrons
- 7. cloudy mixture, cannot be separated
- 9. absorbs heat
- 14. gas or liquid
- 15. negative charge
- 16. pure substances
- 19. workplace hazardous materials info system
- 21. combination of two or more elements
- 22. releases heat