Across
- 2. colorless noble gas
- 5. atomic number three
- 6. named after albert einstein
- 7. atomic number one
- 10. its a hard brittle crystalline
- 11. belongs to the halogen family
- 12. its known for its pink color
- 13. silvery white metal
Down
- 1. very lo melting point
- 3. highly reactive and never found in nature
- 4. atomic number 88
- 8. its a rare earth element
- 9. atomic number 13