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chemcheatsheet - Chem 1 study guide Bohr's postulates:...

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Chem 1 study guide Bohr’s postulates: 1.Electrons in an atom can only occupy certain orbits (corresponding to certain energies). 2.Electrons in permitted orbits have specific, “allowed” energies; these energies will not be radiated from the atom. 3.Energy is only absorbed or emitted in such a way as to move an electron from one “allowed” energy state to another; the energy is defined by E = h ν Quantum #’s N -energy level on which the orbital resides. n ≥ 0. L - defines the shape of the orbital. 0 to n-1 M1 - three-dimensional orientation of the orbital. - l to l : l m l l. M S- The “spin” of an electron describes its magnetic field, which affects its energy; two electrons in the same orbital do not have the same energy only values: +1/2 and −1/2 Z eff = Z (atomic #)− S( inner electrons) Bigger z = closer to the nucleus = smaller atoms -In an isoelectronic series, ions have the same number of electrons.
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chemcheatsheet - Chem 1 study guide Bohr's postulates:...

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