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Chapter 8.3 - Electron Configuration
Principles of Chemistry - A Molecular Approach, 2nd Edition by Nivaldo J. Tro
11
Chemistry
Undergraduate 1
01/18/2013

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Term
electron configuration
Definition
shows the particular orbitals that electrons occupy for that atom
Term
ground state
Definition
the lowest energy state
Term
orbital diagram
Definition
symbolizes the electron as an arrow in a box that represents the orbital
Term
Pauli exclusion principle
Definition
No two electrons in an atom can have the same four quantum numbers
Term
degenerate
Definition
orbitals that all have the same energy
Term
Coulomb's Law
Definition
the potential energy of two charged particles depends on their charges and their seperation
Term
shielding
Definition
the repulsion of one electron by another electron
Term
effective nuclear charge
Definition
the actual nuclear charge experienced by an electron, defined as the charge of the nucleus plus the charge of the shielding electrons
Term
penetration
Definition
the phenomenon of some higher-level atomic orbitals having significant amounts of probability within the space occupied by orbitals of lower energy level
Term
aubauf principle
Definition
the principle that indicates the pattern of orbital filling in an atom
Term
Hund's rule
Definition
the principle stating that when electrons fill degenerate orbitals they first fill them singly with parallel spins
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