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Unedit..vien..i check ad, Atoms, electron, and periodic trends The Quantum Mechanical Model of the Atom Louis de Broglie, For atomic line spectra certain frequencies of light are observed Inferences , Max Planck Black bodies Radiates energy, electron collides with light changes uncertainty principle - cannot measure initial position and velocity at the same time, Principle Quantum Number (n) ~ energy (larger n, higher energy) ~ size of orbital (larger n, bigger orbital) ~ n={1,2,3,4,5...} ???? tell about orbital, Scehrodinger introduces the idea of orbitals -each oribital has an associated energy -electron moves from a lower energy to higher energy orbital it absorbs specific frequency of light -electron moves from a higher energy to lower energy orbital it release specific frequency of light -orbitals are quantized -when moving insde an orbital the electron does not emit energy -inside an orbital we are likely to find an electron, but we cannot say exactly where it is because of Hisenberg's uncertainly principle, wave characteristic as mass of a particle decrease, observable wave characteristic will increase , Atoms combine in whole number ratios Features *atom are tiny *atoms are indestructable *atoms are hard *atoms are spherical, Bohr Observation For atomic line spectra certain frequencies of light are observed, Louis de Broglie integrate Scehrodinger