10. Periodic Properties of the Elements

The Electron Configuration: Quantum Numbers

Multiple Choice
What is the maximum number of electrons that an s subshell can hold?
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Multiple Choice
Give the set of four quantum numbers that represent the indicated electron in each of the following elements.
Mg (7th electron)
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Multiple Choice
How many electrons does a cobalt (Co) atom have in its 3d subshell?
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Multiple Choice
Give the set of four quantum numbers that represent the indicated electron in each of the following elements.
Cl^– (18th electron)
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Multiple Choice
Which noble gas is used as the core in the noble gas electron configuration for plutonium (Pu)?
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Multiple Choice
Consider the following electron configurations to answer the question.
(i)   1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s¹
(ii)   1s²2s²2p⁶3s²3p⁵
(iii)   1s²2s²2p⁶3s²3p⁶4s²3d⁸
(iv)   1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶
(v)   1s²2s²2p⁴3s¹
Which represents the ground state electron configuration for a halogen?
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Open Question
In what way are the electron configurations of H, Li, Na, K, Rb, and Cs similar?
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Multiple Choice
How many orbitals are present in a p subshell?
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Multiple Choice
Consider the following electron configurations to answer the question.
(i)   1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s¹
(ii)   1s²2s²2p⁶3s²3p⁵
(iii)   1s²2s²2p⁶3s²3p⁶4s²3d⁸
(iv)   1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶
(v)   1s²2s²2p⁴3s¹
An example of a configuration of a transition metal is ________.
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Multiple Choice
Which of the following orbitals can hold two electrons?
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