Across
- 4. Used in fireworks and medicine
- 5. Atomic mass of 35
- 8. Halide family, atomic number of 53
- 9. 78% of air
- 10. 14 neutrons and the 2nd most abundant metal
- 12. Only liquid halide
- 13. 26 protons
- 16. Transition metal, 30 electrons
- 17. In the nitrogen family with 16 neutrons
- 19. Metal liquid at room temp
Down
- 1. 1 electron and not an alkali metal
- 2. In boron family
- 3. Noble gas with two electrons
- 5. Basic of life
- 6. Metal with 28 electrons
- 7. Carbon family in the fifth period
- 11. Lots of jewelry made with this
- 14. Found in teeth and bones
- 15. Used to make salt
- 18. 8 protons and 8 neutrons