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Chapter 5: Electrons

QuestionAnswer
atomic orbital a mathematical expression describing the probability of finding an electron at various locations; usually represented by the region of space around the nucleus where there is a high probability of finding the electron.
Aufbau Principle the rule that electrons occupy the orbitals of lowest energy first
electron configuration the arrangement of electrons of an atom in its ground state into various orbitals around the nuclei of atoms.
energy level the specific energies an electron in an atom or other system can have
ground state the lowest possible energy of an electron described by quantum mechanics
Hund's Rule electrons occupy orbitals of the same energy in a way that makes the number of electrons with the same spin direction as large as possible
Pauli exclusion principle an atomic orbital may describe at most two electrons, each with opposite spin direction
quantum the amount of energy needed to move an electron from one energy level to another
quantum mechanical model the modern description, primarily mathematical, of the behavior of electrons in atoms
Created by: annericson