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MediumNEET TEST
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Which of the following statements are incorrect? (A) The electronic configuration of Cu is [Ar]3d⁹4s². (B) The magnetic quantum number may have a negative value. (C) In the ground state, electrons fill orbitals in order of increasing energy. (D) The total number of nodes is equal to n + ℓ. Choose the most appropriate answer from the options given below:
A
A, C and D only
B
A and D only
C
A, B and C only
D
B, C and D only
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