1. Familiar Elements

2. Aluminum- Al Lightweight and does not corrode Used in airplane construction

3. Calcium- Ca Needed for healthy teeth and bones Used in cement

4. Carbon- C Occurs in many forms including diamond and graphite (“Lead” in pencils)

5. Chlorine- Cl Kills bacteria Used to purify water

6. Copper- Cu A good conductor of electricity Used for wires

7. Gold- Au Does not rust or tarnish Used for coins and jewelry

8. Helium- He Lightweight gas Does not explode Used to fill balloons

9. Hydrogen- H Combines with oxygen to form water

10. Iodine- I Its compounds are used on cuts to kill bacteria.

11. Iron- Fe Can be combined with carbon to make steel

12. Lead- Pb A soft metal Used in storage batteries

13. Neon- Ne A gas used in glass tubes for lights

14. Nitrogen- N A colorless gas that makes up most of the atmosphere Its compounds are essential for life

15. Oxygen Used by the body for breathing Needed to make most fuels burn

16. Potassium- K Its compounds are essential to life Used in medicines and fertilizers

17. Silicon- Si Used to make tiny chips for computers

18. Silver- Ag Used to make jewelry, coins, and eating utensils Its compounds are used in photography

19. Sodium- Na Combines with chlorine to make salt and with other substances to make baking soda, borax, and glass.

20. COMPOUNDS Molecules form when elements chemically combine together.

21. Organic compounds Any compound containing CARBON SUGAR is a common example.

22. Inorganic compounds Compounds that do NOT contain carbon. SALT is can example: NaCl