Across
- 4. (Rg) Wilhelm Röntgen
- 8. (Fl) Georgy Flerov
- 10. (Cn) Nicolaus Copernicus
- 12. (Fm) Enrico Fermi
- 13. (Cm) Marie and Pierre Curie
- 14. (Fm) Enrico Fermi
- 16. (Lr) Ernest Lawrence
- 17. (Es) Albert Einstein
Down
- 1. (Sg) Glenn T. Seaborg
- 2. (Hh) Otto Hahn
- 3. (Bk) George Berkeley
- 5. (Md) Dmitri Mendeleev
- 6. (Gd) Johan Gadolin
- 7. (Mt) Lise Meitner
- 9. (Bh) Niels Bohr
- 11. (Rf) Ernest Rutherford
- 15. (Og) Yuri Oganessian
- 18. (No) Alfred Nobel