Multiple Choice
Which of the following represents the core electrons in the electron configuration of cobalt (Co, atomic number 27)?
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10. Periodic Properties of the Elements
The Electron Configuration
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Which of the following is a pictorial representation of electron configurations?
A
Lewis dot structures
B
Molecular geometry models
C
Empirical formulas
D
Orbital box diagrams
Verified step by step guidance1
Understand that electron configurations describe the arrangement of electrons in an atom's orbitals, showing how electrons fill different energy levels and sublevels.
Recognize that Lewis dot structures represent valence electrons as dots around element symbols, focusing on bonding and lone pairs rather than detailed orbital filling.
Know that molecular geometry models depict the 3D shape of molecules based on atomic positions, not electron configurations.
Recall that empirical formulas give the simplest whole-number ratio of atoms in a compound, without showing electron arrangements.
Identify that orbital box diagrams visually represent electron configurations by showing electrons as arrows in boxes (orbitals), indicating their spin and occupancy, making them the correct pictorial representation of electron configurations.
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The Electron Configuration practice set
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