Across
- 2. which element on the periodic table has an atomic number of 7
- 3. the elements in group one
- 5. nuetrons charge
- 8. which element on the periodic table has an atomic number of
- 10. They span from Groups 13 to 16
- 14. stable subatomic particle
- 16. electron
- 17. which element on the periodic table has an atomic number of 14
Down
- 1. Group 2
- 4. periods How many perids are on the peridoc table
- 6. charge number of a chemical element
- 7. Mendeleev Who created the periodic table
- 9. the columns in the periodic table are called
- 11. which element on the periodic table has an atomic number of 1
- 12. Group 17
- 13. total number of protons and neutrons in an atomic nucleus
- 14. protons charge
- 15. vertical rows on the periodic table
- 18. hundred and eighteen How many elements are on the periodic table