Across
- 3. 6 valence electrons, Period 2
- 4. Transition Metal, atomic symbol W
- 7. bonds with Group 1 elements, Period 2
- 8. 39 Protons
- 9. Group 11, Period 5
- 12. Valence Group 4A, Period 2
- 14. Noble Gas, full with 2 ve-
Down
- 1. Valence Group 8A, Period 4
- 2. Period 2, tends to lose 2 ve-
- 5. Atomic Number 118
- 6. Halogen, Period 3
- 10. Group 8, Period 4
- 11. Alkali Metal, 5 energy levels/shells
- 13. 2 valence electrons, Period 7