Across
- 3. Symbol is B
- 4. Has the atomic number 19
- 6. Atomic number is 7
- 8. Singer with blonde hair and blue eyes (NOT Billie Eilish)
- 10. Has C as its symbol
- 11. The overall weight of an object
- 12. A property of matter
Down
- 1. Is A letter in the alphabet
- 2. Has the atomic number 1
- 5. Has a mass of 24.305
- 7. Atomic mass is 15.999
- 9. Symbol is Fr