Across
- 4. Particle in atoms that has no (neutral) charge
- 6. Name of the person that discovered the first element
- 8. What elements are mande off
Down
- 1. Particle in atoms with negative charge
- 2. Pure substance that cannot be broken down by any physical or chemical means into simpler substances
- 3. Element or substance that is not a metal
- 5. Horizontal row across the table
- 7. Vertical column down the periodic table