Across
- 3. Alkali metals have ___ melting points
- 5. What determines the order of elements in the periodic table
- 7. The group 7 elements are all ________ non-metals
- 10. The amount of valence electrons in group 5
Down
- 1. Halogens are ____ conductors of heat
- 2. Atomic number is 9
- 4. Noble gases are ________
- 6. The maximum electrons in shell 1
- 8. Atomic number is 20
- 9. What is the atomic number of oxygen in the periodic table