Across
- 2. Positively charged particles
- 4. Candle wax melts. What type of change is this?
- 5. Molecules in nature that have 2 molecules
- 7. A diagram that represents the arrangement of electrons
- 9. When hydrogen and a group 6 or 7 element dissolve in water they become what?
- 10. An ion made up of more than one atom that behaves as a single particle.
- 12. They do not form compounds because they are stable
- 13. Tells us the # of valence electrons in each element
- 16. Metals, Shiny silvery metals
- 17. They orbit the nucleus
- 18. It is a colorless, Odorless, and it is a gas
Down
- 1. The boiling point of water is 100 degrees Celsius. What type of property is this?
- 3. They have 7 valence electrons in outer orbit
- 4. A structured arrangement of elements
- 6. Horizontal row on Periodic Table
- 8. If a flaming split at the mouth of the test tube pops this caused it.
- 11. They hold tightly in the nucleus and cannot be added or removed
- 14. They react with halogens
- 15. A particle that atoms join by covalent bonds