Across
- 6. Radium, titanium, oxygen, nitrogen
- 7. Phosphorus, gold, selenium
- 9. Gallium, antimony, silver
- 10. Beryllium, actinium, mercury, oxygen, erbium
- 12. Tin, iodine, phosphorus
- 13. Lanthanum, tellurium
Down
- 1. Tungsten, astatine, erbium, yttrium
- 2. Bromine, arsenic, sulphur
- 3. Potassium, nickel, iron
- 4. Hydrogen, iodine, lead, oxygen, neon
- 5. Helium, astatine
- 6. Rhenium, scandium, europium
- 8. phosphorus, argon, tin, iodine, phosphorus
- 9. Germanium, nickel, uranium, sulphur
- 11. Helium, astatine