Which of the following statements are correct? (A) The electronic configuration of Cr is Ar 3 d 5 4 s 1 . (B) The magnetic quantum number may have a negative value. (C) In the ground state of an atom,

Question

Which of the following statements are correct?

(A) The electronic configuration of $Cr$ is $[Ar] 3 d^{5} 4 s^{1}$ .

(B) The magnetic quantum number may have a negative value.

(C) In the ground state of an atom, the orbitals are filled in order of their increasing energy order.

(D) The total number of nodes are given by $n - 2$ .

Choose the most appropriate answer from the options given below.

TestHub · Accepted Answer

(A) Cr = Ar 3 d 5 4 s 1 (B) m = - l to + l means the magnetic quantum number may have negative values. (C) According to Aufbau principle, orbitals are filled in order of their increasing energies. (D) Total nodes = n - 1

Chemistry - Atomic Structure Question with Solution | TestHub

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