객관식
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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10. Periodic Properties of the Elements
The Electron Configuration: Quantum Numbers
객관식
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 ________.
A
(i)
B
(ii)
C
(iii)
D
(iv)
E
(v)
검증된 단계별 안내1
Understand the definition of a transition metal: Transition metals are elements found in the d-block of the periodic table, which typically have partially filled d orbitals.
Examine each electron configuration to identify which one corresponds to a transition metal. Look for configurations with partially filled d orbitals.
Configuration (i): 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^1. This has a filled 3d orbital, not a partially filled one.
Configuration (ii): 1s^2 2s^2 2p^6 3s^2 3p^5. This does not involve d orbitals, so it cannot be a transition metal.
Configuration (iii): 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^8. This has a partially filled 3d orbital, indicating it is a transition metal.
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