Across
- 4. Inventor of the periodic table
- 6. A substance with properties intermediate to metals and non metals
- 9. The group of reactive non-metallic substances on the periodic table
- 10. A substance with high electrical conductivity
Down
- 1. An element that is not metal
- 2. The way the elements are organized
- 3. Wears a lot of sweaters
- 5. uncombined atoms
- 7. negatively charged particle
- 8. negatively charged electrons