Across
- 4. An element that is group 8 and period 4
- 5. Organized the periodic table by Atomic Mass
- 6. Group that has 1 valence electron
- 8. shows the number of valence electrons
- 10. Increase in the number of protons increases the nuclear pull on the valence electrons
Down
- 1. Transition metals are in a group
- 2. Organized the periodic table by atomic number
- 3. Shows you the number of energy levels
- 7. Majority of noble gases have how many valence electrons
- 9. An element with 4 valence electrons and 3 energy levels