What is the position of copper in modern periodic table?

What is the position of copper in modern periodic table?
  1. Period- 5, Group-9
  2. Period-4, Group- 11
  3. Period-4, Group- 10
  4. Period- 3 , Group- 9

Solution

Group 11 and period 4. copper $\mathrm{Cu}(\mathrm{Z}=29)=(\mathrm{Ar}) 3 \mathrm{~d}^{10} 4 \mathrm{~S}^1$

Asked in: MHT CET 2022 (06 Aug Shift 1)

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