Across
- 4. the letter or letters that symbolize a certain element
- 7. the mass of an element
- 8. energy is given off
- 11. Atomic particle found in the nucleus and carries a positive charge
- 12. energy is absorbed
- 14. one solid base gas, solid, or liquid by itself
- 20. matter cannot be created or destroyed, only changed
- 22. Atomic particles that move around the nucleus; Negative charge
- 23. the objects that are reacting with each other in a chemical reaction
- 24. group of elements that are odorless, colorless, and nonreactive
- 25. a reaction when a layer of metal is bonded to another substance
Down
- 1. group of two or more of the same ore different elements
- 2. partially conductive, good for semiconductors and computer chips
- 3. solid, shiny, ductile, good conductor, and malleable
- 5. group of two or more different elements
- 6. the electrons in the outer most orbital
- 9. vertical grouping on the P.T.
- 10. not malleable, conductive, or ductile, and very brittle
- 13. center part of an atom
- 15. Atomic particle found in the nucleus and carries a neutral charge
- 16. the result of a chemical reaction
- 17. the amount of protons and electrons
- 18. regions of space outside the nucleus of an atom
- 19. Russian chemist created periodic table
- 21. The smallest part of an element
- 26. horizontal grouping on the P.T.