Atomic Structure

I.  Matter and Elements
	A.  Mass versus Weight
	B.  Greek Philosophers definition of elements
	C.  Facts about elements
		i.  25 of 92 are life essential
		ii.  C, O, H, N = 96%
		iii.  P, S, Ca, K, Mg, Cl, Na = 4%
		iv.  Zn, Fe, Co, Fl, I, Cu, Mn = 0.01% 
		v.  Compounds versus molecules
		vi.  KNOW SYMBOLS, ATOMIC # AND MASS, VALENCE OR BINDING CAPACITY
			OF ALL LIFE ESSENTIAL ELEMENTS

II.  Atomic Structure
	A.  Subatomic particles
		i.  protons, neutrons, electrons
		ii.  atomic mass unit (amu) = dalton
		iii.  mass number, atomic number, versus atomic weight
		iv.  nominclature
	B.  Isotopes
	C.  Usefulness of radioactive isotopes
		i.  Pet scans
		ii.  MRI scans
		iii.  C dating
		iv.  Scintillation
		v.  Autoradiography

III.	Energy of Electrons and Electron Orbitals
	A.  Only electrons involved in chemical reactions
	B.  Energy and potential energy
		i.  Same principle as
			a.  osmosis
			b.  enzymatic rxns
			c.  electrical gradients
			d.  protein folding
	C.  Electron shells
		i.   electrons enter to lowest potential energy
		ii.  electrons enter no more than 2 per orbital (paired)
		iii.  unpaired electrons participate in reactions
	D.  The Periodic Table 
		i.  Periods or rows of potential energy
		ii.  2,8,8,8
		iii.  valence electrons and the valence shell
		iv.  inert chemicals
	E.  Electron Orbitals replace concentric circle diagrams
		First Shell = 1S orbital
		Second Shell = 2S orbital (1 of these), 2P orbitals (3 of these)
		Third Shell and beyond = holds additional orbitals of more
					complex shapes