Which of the following statement(s) are correct? 1. Electronic configuration of Cr is [Ar]3d^(5)4s^(1) (At. No of Cr=24) 2. The magnetic quantum number may have negative value. 3. In silver atom, 23 electron have a spin of one type and 24 of the opposite type (At. No. of Ag=47) 4. The oxidation state of nitrogen in HN_(3) is -3.

Which of the following statement(s) are correct? 1. Electronic config

1.	Which of the following statement(s) are correct? 1. Electronic configuration of Cr is [Ar]3d^(5)4s^(1) (At. No of Cr=24) 2. The magnetic quantum number may have negative value. 3. In silver atom, 23 electron have a spin of one type and 24 of the opposite type (At. No. of Ag=47) 4. The oxidation state of nitrogen in HN_(3) is -3.
Answer» 1,2,3 2,3,4 3,4 1,2,4 Answer :A