1. Antimony Sb Silver/gray metalloid Solid Used in alloys to increase hardness Used in some semiconductors (microchips)

2. Arsenic As Silver/gray metalloid Solid Used in some weed killers and rat poisons

3. Bismuth Bi Silver/gray metal Solid Low melting point – mixed with lead and tin to make electrical solder and automatic fire sprinkler heads

4. Bromine Br Reddish-brown non- metal One of only 2 elements which are liquids at room temperature (the other is Hg) Will cause painful burns on skin that heal slowly

5. Cadmium Cd Silver metal Solid

6. Calcium Ca Silver-white metal Solid Very soft Important to the formation of bones and teeth

7. Chromium Cr Silver-gray metal Solid Mixed with other metals to make stainless steel Used in many paint pigments

8. Carbon C Non-metal, usually blackish Solid Exists in several forms, including graphite (pencil lead), and diamond Is the basis of organic compounds

9. Cobalt Co Grey-black metal Solid Used in magnets

10. Copper Cu Reddish-brown metal Solid Good conductor of heat and electricity Used for electrical wires, water pipes and cookware

11. Germanium Ge Dark to light gray metalloid Solid Similar to silicon, it is used in microchips

12. Iron Fe Silvery-white metal Solid Very common metal Main component of steels

13. Iodine I Dark gray non-metal Solid When heated, it becomes a purple gas without going through the liquid stage. (this change is called sublimation)

14. Lead Pb Gray metal Solid Very soft Used for fishing sinkers and in car batteries

15. Lithium Li Silvery metal Solid Soft, easily cut with a knife Highly reactive, must be stored in oil to prevent reaction with water vapour in the air

16. Magnesium Mg Silver metal Solid Burns with a very bright flame Used in flares

17. Manganese Mn Silvery metal Solid Used in steel

18. Mercury Hg Silvery metal One of only 2 elements which are liquids at room temperature (the other is Br) Used in thermometers poisonous

19. Nickel Ni Silver-gray metal Solid Used in steel and in magnets

20. Phosphorus P Non-metal, most commonly red or white Solid Burns easily, must be stored in water to prevent reaction with oxygen in air Used in matches

21. Silicon Si Gray metalloid Solid Sand and glass are silicon compounds Used for making microchips

22. Sulfur S Yellow non-metal Solid Often found near volcanoes “Rotten egg” gas is a sulfur compound (hydrogen sulfide)

23. Tin Sn Silvery metal Solid Used to coat iron cans because it doesn’t corrode as easily as iron

24. Zinc Zn Bluish-gray metal Solid Used to coat iron and prevent it from rusting (galvanized iron)