Electronic configuration of $Cu$ $(Z = 29)$ is

  • A
    $[Ar] 3d^{9} 4s^{2}$
  • B
    $[Ar] 3d^{10} 4s^{1}$
  • C
    $[Ar] 3d^{5} 4s^{2}$
  • D
    $[Ar] 3d^{6} 4s^{2}$

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Similar Questions

Which of the following ions does not have the electronic configuration of neon $(Ne)$?

Match List-$I$ with List-$II$.
List-$I$ (Element) List-$II$ (Electronic Configuration)
$A. N$ $I. [Ar] 3d^{10} 4s^2 4p^5$
$B. S$ $II. [Ne] 3s^2 3p^4$
$C. Br$ $III. [He] 2s^2 2p^3$
$D. Kr$ $IV. [Ar] 3d^{10} 4s^2 4p^6$

Choose the correct answer from the options given below:

If the electronic configuration of a nitrogen atom were $1s^7$,its energy would be lower than the ground state configuration $1s^2 2s^2 2p^3$ because the electrons would be closer to the nucleus. However,the configuration $1s^7$ is not observed. Which of the following principles is violated?

The maximum number of electrons in a $p$-orbital with $n=5, m=1$ is$-$

Which is the correct order of increasing energy of the listed orbitals in the atom of titanium? (At. no. $Z = 22$)

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