1. Unit II - Chemistry
In this unit we will discuss the elements of the periodic table, how elements combine to make molecules and the properties of elements and compounds

2. Today's Starter Quote
Don't put off living to next week, next month, next year or next decade. The only time you’re ever living is in this moment.

3. Hydrogen Symbol : 11 H Atomic mass : 1 amu
Uses: light gas that can be used as a fuel.
Check out the Video here

4. Helium Symbol : 42 He Atomic number 2
Uses: lighter than air, often in balloons

5. Lithium Symbol: 73 Li Number of protons and electrons: 3
Uses: metal that is very reactive with water; part of some batteries
Video here

6. Beryllium Symbol: 94 Be Atomic mass: 9 amu
Uses: lightweight parts for missiles and spacecraft

7. Boron Symbol: 115 B Atomic number: 5
Uses: makes plastic- like polymers like Silly Putty or burns with an interesting flame as boric acid

8. Carbon Symbol: 126 C Atomic mass: 12 (used a reference for all matter)
Uses: two forms – graphite in pencils or diamond!

9. Nitrogen Symbol: 147 N Atomic number: 7
Uses: makes up 78% of our atmosphere; vital to living organisms

10. Oxygen Symbol: 168 O Atomic Number: 8
Uses: required for cellular respiration as O2; protects Earth from uv rays as O3

11. Fluorine Symbol: 199 F Number of electrons: 9
Uses: Reacts violently with everything (even glass)! Check here

12. Neon Symbol: 2010 Ne Number of protons, electrons and nuetrons: 10
Uses: fluorescent lights (red)

13. Sodium Symbol: 2311 Na Atomic mass: 23 amu
Uses: reactive with water; component of table salt and ion channels

14. Magnesium Symbol: 2412 Mg Atomic mass: 24 amu
Uses: welding and old photography equipment

15. Aluminum
Symbol: Al
Uses: foil used for cooking, rims on car wheels

16. Silicon
Symbol: 2814 Si
Uses: computer chips, but not silicone – a plastic like substance

17. Phosphorus
Symbol: 3115 P
Uses: occurs in 3 forms – white (dangerous!), red and black; found in pyrotechnics

18. Sulfur
Symbol: 3216 S
Uses: also known as brimstone; smells just awful

19. Chlorine
Symbol: 3517Cl
Uses: used as one of the first forms of chemical warfare; often used as bleach to disinfect

20. Argon
Symbol: Ar
Uses: Also in fluorescent lights – blue in colour!

21. Potassium
Symbol: 3919 K
Uses: part of fertilizer, very reactive with water; found in bananas

22. Calcium
Symbol: Ca
Uses: rare in pure form, but as a compound is key to bones and teeth