Across
- 3. The chemical element of atomic number 65, a silvery-white metal of the lanthanide series.
- 5. The chemical element of atomic number 95, a radioactive metal of the actinide series.
- 6. The chemical element of atomic number 64, a soft silvery-white metal of the lanthanide series.
- 9. The chemical element of atomic number 69, a soft silvery-white metal of the lanthanide series.
- 10. The chemical element of atomic number 89, a radioactive metallic element of the actinide series
- 11. The chemical element of atomic number 71, a rare, silvery-white metal of the lanthanide series.
- 12. The chemical element of atomic number 91, a radioactive metal of the actinide series,
- 13. The chemical element of atomic number 66, a soft, silvery-white metal of the lanthanide series.
- 17. The chemical element of atomic number 41, a silver-gray metal of the transition series, used in superconducting alloys.
- 18. The chemical element of atomic number 60, a silvery-white metal of the lanthanide series, used in coloring glass and ceramics.
- 20. The chemical element of atomic number 90, a white radioactive metal of the actinide series.
- 21. The chemical element of atomic number 67, a soft silvery-white metal of the lanthanide series.
Down
- 1. The chemical element of atomic number 62, a hard, silvery-white metal of the lanthanide series.
- 2. The chemical element of atomic number 70, a silvery-white metal of the lanthanide series.
- 4. The chemical element of atomic number 59, a soft silvery-white metal of the lanthanide series.
- 7. The chemical element of atomic number 57, a silvery-white rare earth metal.
- 8. The chemical element of atomic number 61, a radioactive metal of the lanthanide series.
- 14. The chemical element of atomic number 38, a soft, silver-white metal of the alkaline earth series.
- 15. The chemical element of atomic number 87, a radioactive member of the alkali metal group.
- 16. The chemical element of atomic number 68, a soft, silvery-white metal of the lanthanide series.
- 19. The chemical element of atomic number 63, a soft silvery-white metal of the lanthanide series.
