Across
- 2. group eight elements are called ......... gases.
- 3. the electrons move in different ............... around the nucleus.
- 5. the first group in the periodic table is also known as .......... metals.
- 6. carbon also forms a giant structure for a very soft material .............
- 8. the forces between the molecules are called .............. forces.
- 10. the electrons in the electronic structure are held in place by ................. forces.
Down
- 1. giant covalent structures are called ............
- 4. the ionic compound sodium chloride makes a giant structure known as ........
- 7. group 7 in the periodic table is also known as ..........
- 9. compounds made from ions form ......... lattices.