Across
- 2. – Vertical column on the table
- 6. – Horizontal row on the table
- 7. – Weight of an atom
- 9. – Basic substance on the table
- 10. – Opposite of metal
- 11. – Inert gases group
- 12. – Rare earth element series
- 13. – Defines an element
- 14. – Prefix for unstable isotopes
Down
- 1. – Same element, different mass
- 3. – Conductive element type
- 4. – Related to atom number
- 5. – Group 17 elements
- 8. – Abbreviation for an element
- 11. – Varies in isotopes