Chemistry Chap. 5.3 Study Guide (Electron configuration) – Flashcards
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The arrangement of electrons in an atom is called the atom's ______________________.
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Electron configuration
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Electrons in an atom tend to assume the arrangement that gives the atom the _______________ possible energy.
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lowest
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This arrangement of atoms is the most ______________ arrangement.
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stable
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The arrangement of electrons in an atom which give the atom the lowest possible energy is called the _____________________________.
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ground-state electron configuration
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Three rules define how electrons can be arranged in an atom's _______________.
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orbitals.
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____________________ states that each electron occupies the lowest energy orbital available.
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Aufbau principle
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The __________________ states that a maximum of two electrons may occupy a single orbital, but only if the electrons have OPPOSITE SPINS.
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Pauli exclusion principle
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___________________ states that single electrons with the same spin must occupy each equal-energy orbital before addition electrons with opposite spins occupy the same orbitals.
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Hund's rule
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_______________ is a method of representing electrons using bracketed symbols.
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Noble-gas notation
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The electron configuration for an element can represented using the noble-gas notation in the previous _________ and the electron configuration for the energy level being filled.
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period
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The electrons in an atom's outermost orbitals are called _______________________.
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Valence electrons.
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In an electron-dot structure, the element's symbol represents the ____________________________.
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Atom's nucleus and inner-level electrons.
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Valence electrons are represented by the ______ in an electron-dot structure.
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dots
