Across
- 1. a colorless, odorless, inert monatomic gas in standard conditions.
- 3. a chemical element that is malleable, ductile, pinkish-orange and a great electrical conductor.
- 6. a soft, non-magnetic ductile metal in the boron group.
- 7. a metal with the highest electrical and thermal conductivity: symbol Ag.
- 8. a highly reactive nonmetal: symbol O.
- 10. a chemical element and second-lightest of the halogens yellow-green gas at room temperature.
- 12. an essential mineral found in foods and in your body helps with the immune system.
- 15. a low density, high strength transition metal used in jewelry, prosthetics, aerospace, and surgical tools.
- 18. a colorless, tasteless, odorless flammable gas substance and the lightest element in the periodic table.
- 19. a silver-white metal of the alkaline earth metals used for aerospace industries and some flashlights.
Down
- 2. an unreactive gas that forms about 78% of earth's atmosphere
- 3. a nonmetallic element found in coal, charcoal, soot and diamonds.
- 4. a dense, highly unreactive, silvery-white transition metal: symbol Pt.
- 5. symbol F and atomic number 9.
- 9. a soft, silvery-white, highly reactive alkali metal and essential electrolyte for the body.
- 11. a metal from the alkali metals: symbol K.
- 13. a hard, brittle, crystalline solid element with a blue-grey metallic tint.
- 14. a mineral necessary for building bones and keeping them strong.
- 16. a metal and one of the most common elements on earth also a mineral our body needs.
- 17. the first non-toxic, monatomic gas in the noble gas group.