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Question: Answered & Verified by Expert
An element of atomic number 29 belongs to
ChemistryClassification of Elements and Periodicity in PropertiesJEE Main
Options:
  • A s -block
  • B p -block
  • C d -block
  • D f-block
Solution:
2869 Upvotes Verified Answer
The correct answer is: d -block
$\mathrm{Cu}_{29}-[\mathrm{Ar}] 3 d^{10} 4 s^1$. Since the last electron enters in the \(d\) subshell, it is a \(d\) block element.

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