Across
- 5. crystalline structure, becomes liquid very easily, soft metal
- 7. brittle, used in rat poisons and insecticides, silver-grey
- 9. hard but brittle metal, oxidizes easily, can be burned when it's a powder
- 10. reactive in oxygen, neutron detectors, exists in several oxidation states
- 16. oxidizes when exposed to air, soft, heaviest member of alkaline-earth
- 18. jewelry, malleable, high melting point, heavy but soft metal
- 19. transition metal, white pigment for paints, lipsticks
Down
- 1. has a melting point at 44.1 degrees C, glows in the dark, fertilizers
- 2. colorless and odorless, insipid gas, used in ammonia, rocket fuels
- 3. lightest halogen, pale yellow gas, toxic
- 4. can be dissolved, medical treatments, printing inks and dyes
- 6. dense metal,tarnishes rapidly, nuclear energy
- 8. silvery but turns yellow when tarnished, used in nuclear weapons, can self-generate a nuclear reaction
- 11. colorless and tasteless gas, orange color in a vacuum chamber, noble gas
- 12. forms hydroxide in water, soft metal, sold in countries that permit it as a pesticide
- 13. can be magnetized, stable in air, used in many alloys
- 14. oxidizes slowly, can be dissolved, found in stainless steel and aluminium alloys
- 15. glows in the dark due to radioactivity, was discovered by a French chemist (Friedrich Otto Giesel), chemical behavior similar to lanthanum
- 17. odorless and colorless and tasteless, flash lamps, arc lamps