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Question

• The total spin resulting from a d⁷ configuration is:
• The orbital with zero orbital angular momentum is:
• Which of the following is electronic configuration of Cu²⁺(Z=29)?

Answer 1

a) d⁷ means the configuration. In other words, there will be 3 unpaired electrons of a 3/2 spin.

b) The correct answer is s- orbital

• When l = 0, it is evident from that the angular momentum of the electron is zero.
• The atomic orbitals which describe these states of zero angular momentum are called s orbitals. 
• The s orbitals are distinguished from one another by stating the value of n, the principal quantum number.

c) The correct option is c

 After the 4s is full we put the remaining six electrons in the 3d orbital and end with 3d9. Therefore the expected electron configuration for Copper will be 1s² 2s² 2p² 3s² 3p² 4s¹ 3d¹⁰.

[Ar] 4s¹ 3d¹⁰

Comments

Thanks sir best answer