Across
- 4. A large molecule is broken down into smaller molecules or atoms
- 6. Vertical column on the periodic table
- 7. An uncharged subatomic particle
- 9. A small piece of something, thought of as a tine hard sphere
- 11. The element with relative atomic mass of 12
- 13. A horizontal row on the periodic table
- 14. Shiny
- 15. What type of oxides do non-metals form
Down
- 1. Can be drawn or stretched into wires
- 2. The total mass of all protons and neutrons in an atom (8,6,4)
- 3. A subatomic particle with a positive charge
- 5. A group of 2 or more atoms that are chemically bonded together
- 8. A subatomic particle with charge of -1
- 10. ________ number. The number of protons in one atom of an element.
- 12. What type of oxides do metals form