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d-Block Elements (Hard)

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Match the following:

 
Group - I (element) Group - II (electronic configuration)
P. Cu 1. 4d7, 5s1
Q. Mo 2. 4d8, 5s1
R. Ru 3. 3d10, 4s1
S. Rh 4. 4d5, 5s1
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A
P - 3, Q - 4, R - 1, S - 2
💡 Explanation:

29Cu has the electronic configuration of 3d10, 4s1. 42Mo has the electronic configuration of 4d5, 5s1. 44Ru has the electronic configuration of 4d7, 5s1. 45Rh has the electronic configuration of 4d8, 5s1.
Hence, the correct answer using the codes is P - 3, Q - 4, R - 1, S - 2.

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