Across
- 2. It has 5 protons and 5 electrons
- 4. Atomic Symbol for Iron
- 9. Atomic mass is 22.989770
- 10. It has 79 protons and 79 electrons
- 13. Atomic Number is 2
- 14. Atomic Symbol for Nickel
- 15. Atomic Number is 12
Down
- 1. Atomic mass is 39.0983
- 3. It has 4 protons and 4 electrons
- 5. Atomic Number is 10
- 6. It has 20 protons and 20 electrons
- 7. Atomic Symbol is Li
- 8. Atomic Symbol for Silver
- 11. Atomic Symbol is Cu
- 12. Atomic mass is 15.994