Across
- 5. where the protons and neutrons live in an atom
- 7. What a column is called on the periodic table?
- 8. What the modern periodic table is arranged by?
- 9. This is what a vertical column n on the PT is called.
- 10. Neon is in this group.
- 11. horizontal row on the periodic table is called...
- 12. What is the name for the element symbol Li?
Down
- 1. sodium is in this group
- 2. where the electrons live in an atom
- 3. Elements in the same ___ have similar chemical properties
- 4. Aluminum is in what group?
- 6. This element has 14 protons.