Atomic Theory (Or a quick Chemistry Review). Atomic Theory Q: What does science study? A: The natural world, the physical universe Q: What are the components.

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Presentation transcript:

Atomic Theory (Or a quick Chemistry Review)

Atomic Theory Q: What does science study? A: The natural world, the physical universe Q: What are the components of the P.U? A: matter, energy, forces

“Flavors of Atoms” (But which are “atoms of life”?)  Worksheet review

“Guts” of Atom NameLocation Charge Mass ProtonNucleus+11 amu NeutronNucleus 0~ 1amu Electronshell, E level -1~ 1/2000 amu

Vocabulary  Atomic number (Z) –  Atomic mass (M)  Valence electrons –  Octet rule –  “bus-seat” rule

How to Build an Atom 1) Determine Z 2) Add neutrons 3) Add electrons (# electrons = # protons) Rules: * Add up to 2 e to 1 st E level * Add up to 8 e to 2 nd E level * Add up to 8 e to 3 rd E level …….

Draw oxygen  Atomic # = ?  Atomic mass = ?  # of valence electrons?  Stable?

Draw P, H  Atomic # = ?  Atomic mass = ?  # of valence electrons?  Stable?

Why do atoms bond?  (For the same reasons humans do??  To become “happy”!  To become more stable..  NOTE: ATOMS LOSE THEIR INDIVIDUAL IDENTITY WHEN CHEMICALLY BONDED TO FORM MOLECULES