Across
- 2. solid material, shiny, hard, fusible, ductile
- 5. has a atomic number, protons and electrons
- 8. numbered row
- 9. created the P.T.
- 10. substance that isn't a metal
- 11. each column in the P.T.
Down
- 1. abreviation of an element on the P.T.
- 3. number of protons
- 4. same number as protons and nutrons
- 6. electrical semiconductors
- 7. (examples) helium, neon, argon, krypton, xenon, and radon,