Transition and InnerTransition Elements - Result Question 45

####46. Which of the following statement (s) is/are correct?

(1998)

(a) The electronic configuration of Cr is [Ar]3d54s1 (Atomic number of Cr=24 )

(b) The magnetic quantum number may have a negative value

(c) In silver atom, 23 electrons have a spin of one type and 24 of the opposite type (Atomic number of Ag=47 )

(d) The oxidation state of nitrogen in HN3 is -3

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Answer:

Correct Answer: 46. (a, b, c, d)

Solution:

  1. Cr : [Ar]3d54s1

Magnetic quantum number : l.0+l.

Ag(4d105s1) All paired electrons have opposite spin. The last one has unpaired spin.



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