Unit II - Chemistry

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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

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

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Beryllium

• Symbol 94 Be
• Atomic mass 9 amu
• Uses lightweight parts for missiles and
  spacecraft

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Boron

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

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Carbon

• Symbol 126 C
• Atomic mass 12 (used a reference for all matter)
• Uses two forms graphite in pencils or diamond!

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Nitrogen

• Symbol 147 N
• Atomic number 7
• Uses makes up 78 of our atmosphere vital to
  living organisms

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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)

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Sodium

• Symbol 2311 Na
• Atomic mass 23 amu
• Uses reactive with water component of table
  salt and ion channels

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Magnesium

• Symbol 2412 Mg
• Atomic mass 24 amu
• Uses welding and old photography equipment

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Aluminum

• Symbol 2713 Al
• Uses foil used for cooking, rims on car wheels

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Silicon

• Symbol 2814 Si
• Uses computer chips, but not silicone a
  plastic like substance

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Phosphorus

• Symbol 3115 P
• Uses occurs in 3 forms white (dangerous!), red
  and black found in pyrotechnics

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Sulfur

• Symbol 3216 S
• Uses also known as brimstone smells just awful

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Chlorine

• Symbol 3517Cl
• Uses used as one of the first forms of chemical
  warfare often used as bleach to disinfect

20
Argon

• Symbol 4018 Ar
• Uses Also in fluorescent lights blue in
  colour!

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Potassium

• Symbol 3919 K
• Uses part of fertilizer, very reactive with
  water found in bananas

22
Calcium

• Symbol 4020 Ca
• Uses rare in pure form, but as a compound is
  key to bones and teeth