Which of the following statement are correct ?

1.	Which of the following statement are correct ?
Answer» The electronic CONFIGURATION of Cr is `[Ar] 3D^(5) 4s^(1)` (Atomic No. of cr = 24) The MAGNETIC quantum number may have a negative value In silver atom, 23 electrons a spin of ONE type and 24 of the opposite type (Atomic No. of AG = 47) The oxidation state of nitrogen in `HN_(3) " is " -3` Answer :A::B

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