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[" Which of the following statements (s)...

[" Which of the following statements (s) is (are) correct "],[" (a) The electronic configuration of "Cr" is "[Ar]3d^(5)4s^(1)],[" (Atomic no.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 no.of "Ag=47" ) "],[" (d) The oxidation state of nitrogen in "HN_(3)" is "-3]

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Which one of the following statement (s) is (are) correct ? (A) The electronic configuration of Cr is [Ar] 3d^(5) 4s^(1) . (Atomic No. of Cr = 24) (B) The magnetic quantum number may have a negative value (C) In silver atom, 23 electrons has a spin of one type and 24 of the opposite type. (Atomic No. of Ag = 47) (D) The oxidation state of nitrogen in NH_(3) is -3 .

Which of the following statement is not correct about the electronic configuration of chromium atom (Cr with atomic number = 24) ?

The electronic configuration of Ni (atomic number = 28) is given as [Ar] 4s^(2)3d^(y) .The value of y is

The electronic configuration of Ni (atomic number =28 ) is given as [Ar]4s^(2)3d^(y) .The value of y is

The electronic configuration of transition element "X", is +3, oxidation state is [Ar]3d^(5) . What is its atomic number?