Across
- 3. The number of protons or electrons normally found in an atom of a given chemical element
- 4. column of elements in the periodic table
- 6. are all the elements in groups one, two, thirteen, fourteen, fifteen, sixteen, seventeen and eighteen of the periodic table.
- 9. name given to a horizontal row of the periodic table
- 10. also called inert gases
Down
- 1. this group is known as group 17
- 2. groups 3 through 12 of the periodic table
- 5. conductors of electricity
- 7. an arrangement of chemical elements based on the periodic law
- 8. found in group 1 of the periodic table