1. Transition Metals part 3 Groups 9-12

2. Co Cobalt Blue glass Co-60: cancer treatment, sterilization, and irradiation Vitamin B-12: Cobalamin(e) AlNiCo magnets: very strong Steel belted radial tires

3. Rh Rhodium

4. Ir Iridium Spark plugs

5. Mt Meitnerium Named for Lise Meitner

6. Ni Nickel NiCad rechargeable batteries Reflective coatings Biological enzymes Can be used in white gold

7. Pd Palladium Catalyst Dental crowns Can be used in white gold Carbon monoxide detectors

8. Pt Platinum Jewelry Catalyst Very expensive

9. Ds Darmstadtium Named for Darmstadt, Germany

10. Cu Copper From the Latin cuprum Conductor Forms brass with zinc, bronze with tin. Statues (statue of liberty)

11. Cu Copper Plumbing and roofing Bacteriostatic Blue blooded molluscs, arthropods, and Vulcans Biological enzymes

12. Ag Silver From the Latin argentum Highest electrical and thermal conductivity of any metal Used in coins, jewelry, tableware, photography, and in mirrors. Antiseptic (AgNO 3 ) Sterling silver is Ag and Cu

13. Ag Silver Mythically used to kill werewolves Lone Ranger’s bullets British pound was originally one troy pound of sterling silver Abbreviation for pound (lb) comes from libra (scales)

14. Au Gold From the Latin aurum Coins Jewelry Electrical connectors Arthritis medication Carat number is fraction of pure gold over 24

15. Rg Roentgenium Named for Wilhelm Roentgen, discoverer of X-rays

16. Zn Zinc Galvanizing Good taste Batteries Alloyed with copper to make brass Coins Skin medication (ZnO)

17. Cd Cadmium NiCad rechargeable batteries Highly toxic Control rods

18. Hg Mercury From the Latin hydrargyrum Thermometers, barometers, manometers Thermostat switches Highly toxic Medicines Lamps

19. Hg Mercury Found in ore cinnebar (HgS) Formerly used in gold or silver refining Felt hattery

20. Cn Copernicium Named for Nicolaus Copernicus