Which of the following statement(s) is (are) correctA. The electronic configuration of Cr (at. No:24) is `[Ar] 3d^5 4s^1`B. The magnetic quantum number may have a negative valueC. In Ag (at. No. 47), 23 electrons have spins of one type and 24 electrons have spins of opposite typeD. The oxidation state of nitrogen in `HN_3` is -3

Which of the following statement(s) is (are) correctA. The electronic

1.	Which of the following statement(s) is (are) correctA. The electronic configuration of Cr (at. No:24) is `[Ar] 3d^5 4s^1`B. The magnetic quantum number may have a negative valueC. In Ag (at. No. 47), 23 electrons have spins of one type and 24 electrons have spins of opposite typeD. The oxidation state of nitrogen in `HN_3` is -3
Answer» Correct Answer - A::B::C Electronic configuration of Cr `to [Ar] 3d^5 4s^1` `to` Let I =1 , `m_1`=-1,0,+1 `to Ag to 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4d^10 5s^1` No. of electrons having `m_s=+1/2 "or" -1/2 =24` and rest 23 `to` oxidation number of N in `NH_3` is `-1/3`

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