CHE 101 Chapter Notes - Chapter 6: Azimuthal Quantum Number, Magnetic Quantum Number, Matter Wave
31 Oct 2016
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Postulates: lucretius - sour atoms have barbs; bland atoms are smooth. Lasted for 2,000 years: dalton"s atomic theory - atoms of different elements are different and not changed into each other by chemical reactions - alchemy refuted (p. 42, electrons are discovered (p. 44) Charge = 1. 6 10 19 coul: rutherford gold foil - all weight (mass) is in the nucleus (p. 46, spectroscopy - line spectra are different for each element (p. 219) Refer to figure 6. 1, 6. 4, and 6. 11: bohr atom - a planetary model - quantum condition (p. 220) Nucleus in the center and electrons in orbits. Figure 6. 13: de broglie - wave nature of an electron. = h/mv h = planck"s constant m = mass v = velocity (p. 223: heisenberg uncertainty principle (p. 225) Don"t know precise location of electron at a certain time. ( x)( p) h/4 : wave mechanics electron as waves p. 226.
