Across
- 4. causes blindness
- 5. is a metalloid used in electric devices
- 6. build his periodic table based on the atomic number
- 8. causes liver cancer
Down
- 1. the strongest nonmetal in the periodic table
- 2. metalloid contains 3 electrons in the outermost shell
- 3. the strongest metal in periodic table
- 4. a scientist that build the periodic table according to the atomic weight
- 7. elements that react with metals giving salts