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24 Cards in this Set
- Front
- Back
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F orbitals
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are complex
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Max Planck
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energy is gained or lost was in whole # multiples
meant that energy was quantized (discrete amounts) |
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Quantum Mechanics
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branch of mathamatical physics treating PT with mathetmatical quantities
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Quantum Mechanics
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branch of mathamatical physics treating PT with mathetmatical quantities
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Newton's Laws
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-matter consists of particles
-energy in the form of light is a continunous wave |
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Hund's Rule
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when electrons occupy orbitals of equal energy one enters each until all the orbitals contain one electron with parallel spins
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Aufbau principal
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electrons enter orbitals of the lowest energy level first
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Louis de Broglie
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electrons had particle like and wave like properties
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Ground state
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Bohrs model placed electrons on their lowest energy state
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P orbitals
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lobes in shape
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Pauli exclusion principle
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-an atomic orbital may describe at the most two electrons
-when to electrons occupy the same orbital they have opposite spins |
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Schrodinger
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developed mathematical model of the atom called Quantum Mechanical Model
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Henry Mosley
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reordered elements according to their atomic numbers
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Henry Mosley
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reordered elements according to their atomic numbers
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electrons follow fixed orbits which
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each have their on quantum of energy
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Neil Bohr
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develope new model of atom
-put circles around nucleus -the specific amount of energies that an electron had was called quantums of energy |
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D orbitals
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lobes and donut rings
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Dmitri Medeleev
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made PT by arranging elements in order of their atomic masses in columns, and rows by chemical composition
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S orbitals
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spherical in shape
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columns
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similar chemical properties
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Heisenberg
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Uncertainity Principal- electrons so small can never know enough to know the posistion of an electron
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Einstein proposed duality of light
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light has wavelike and particle like properties
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90% probablitity
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that the Quantum Mechanical Model descirbes the electron's position
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rows
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called periods because there was a periodic pattern which was repeated in each row of properties increasing or decreasing
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