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Let’s Review!!!
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and
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s orbitals are spherical and have 1 spacial orientation
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n s orbitals as n increases: 1s, 2s, and 3s
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p p orbitals are 3 dumbbell shapes or 3 spacial orientations
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p orbitals
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sandporbitals s and p orbitals
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d55 d orbitals are 5 complex shapes or 5 spacial orientations
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d5 5 d orbitals have 5 complex shapes or have 5 spacial orientations
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f 7 7 f orbitals have 7 complex shapes or 7 spacial orientations
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f f orbital
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The 4 th shell (n=4)
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electron An electron that is confined to a particular space around the nucleus of an atom can only move around that atom in such a way that its electron wave “fits” the size of the atom correctly. This means that the frequencies of electron waves are quantized.
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Based on the E=hν equation, the fact that only certain quantized frequencies are allowed for a given electron means that electrons can only exist in an atom at specific energies, as Bohr had previously theorized.
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Remember ! Heisenberg Uncertainty Principle Remember ! Heisenberg Uncertainty Principle: states that it is impossible to determine simultaneously both the position and the velocity of a particle.
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http://video.pbs.org/video/18121247/
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Hund’s Rule Pauli Exclusion Principle Aufbau Principle: Electrons fill orbitals of lowest energy first. Hund’s Rule: Electrons enter orbitals with parallel spins before pairing. Pauli Exclusion Principle: States that a sublevel can contain up to 2 electrons and must have parallel spins.
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http://www.kentchemistry.com/links/ AtomicStructure/elecPT.htm
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Emission Spectrum
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Color of Light for some Common Elements
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Metal ions & Colors Carbon gold Iron Titanium, white Aluminum, Beryllium, Magnesium
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PERIODIC TRENDS Atomic Size
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Periodic Trends Electronegativity
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Periodic Trends Electron Affinity
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Periodic Trend Ionization Energy
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Periodic Trend Metallic Character
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Periodic Trend Shielding Effect
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Periodic Trend Boiling Point
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Periodic Trends Reactivity in Metals
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Periodic Trends Reactivity in Nonmetals
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