Across
- 1. The ______ Number tells you the number of protons and neutrons in an atom
- 4. The group of metals with no group number (_____ metals)
- 7. Atoms with the same number of protons but different numbers of neutrons
- 8. The columns in the periodic table
- 9. Group 1 metals (_____ metals)
Down
- 2. The _______ Number tells you the number of protons in an atom
- 3. Group 7 non metals
- 5. The ______ Gases found in Group 0
- 6. The rows in the periodic table
