Across
- 4. Last element in the periodic table
- 5. The rings that electrons follow around the nucleus
- 7. The distance from the nuclues to the shells of electrons
- 11. Which has a higher atomic mass iron or lead
- 14. A pattern of increasing or decreasing properties across the periodic table
- 16. Most reactive non-metal element
- 17. Lowest effective nuclear charge element
- 18. Highest atomic radius
Down
- 1. Up and down on a periodic table
- 2. A measure of whether or not atoms will trade electrons with other atoms
- 3. Element next to hydrogen
- 6. Atomic number 1
- 8. Atomic number 25 on the periodic table is
- 9. Right and left on a periodic table
- 10. What is the first element in group 5
- 12. 69th element on the periodic table
- 13. Most reactive metal
- 15. Atomic weight of 65.409