Across
- 6. the number of protons in an atom's nucleus
- 7. measure of an atom's size, nucleus to outer shell
- 10. gains electrons, conducts poorly
- 11. has properties of both metals and nonmetals
- 13. type of electron found on outer shell
- 14. manmade elements
Down
- 1. the weight of an atom (has a decimal)
- 2. attraction for another atom's electrons
- 3. column on periodic table
- 4. a diagram showing only valence electrons
- 5. loses electrons, conducts well
- 8. energy to form ions
- 9. 7 elements, only bond with themselves
- 12. row on periodic table