Across
- 3. neutral particle of an atom
- 4. gas to liquid
- 5. gas to solid
- 7. positively charged particle of an atom
- 8. formed with one metal and one non-metal
- 9. new material produced by the reaction
- 10. vertical column of the periodic table(also called a family)
- 11. group 1 element
- 13. formed with two non-metals
- 14. a chemical reaction that takes place in the cells in your body
- 16. the basic unit of a chemical element.
- 17. takes place when two or more substances combine to form new substances.
- 18. solid to gas
- 20. negatively charged particle of an atom
- 21. group 17 element
- 23. horizontal row of the periodic table
Down
- 1. liquid to gas(vaporization)
- 2. slow chemical change that occurs when oxygen in the air reacts with a metal
- 4. the total mass of the reactants and the total mass of the products are equal
- 6. a chemical reaction that occurs when oxygen reacts with a substance to from a new substances and give off energy
- 12. gases group 18 element
- 14. substances that help a reaction proceed faster
- 15. material at the start of a reaction
- 19. have both metallic and non-metallic properties
- 22. The Workplace Hazardous Materials Information System