Across
- 2. a bond that involves sharing electrons
- 5. Negatively charged particles
- 7. an atom or group of atoms that either has a postive or negative charge
- 9. elements gaseous at room temp
- 10. a group of two or more atoms held by chemical bonds
- 11. a mixture of elements
Down
- 1. elements solid at room temp
- 3. a building block for compounds
- 4. holds molecules together essential to life
- 6. type of bonding that involves trading
- 8. positively charged particle