Across
- 3. Creator of the first periodic table
- 4. Poisonous metalloid
- 6. Nonmetal often used in signs
- 7. Good conductor; can corrode
- 9. Contains properties of both metals and nonmetals
Down
- 1. Sodium, silver, and strontium are examples of this
- 2. Stated that elements listed in order of their atomic numbers will fall into groups
- 5. Low melting point; breaks easily
- 8. Organized the modern periodic table