An element in +3 oxidation state has the electronic configuration [ Ar ]3d^3. Its atomic number is _____

MHT CET Chemistry question

An element in +3 oxidation state has the electronic configuration . Its atomic number is

Answer: (A)

The neutral atom has 3 more electrons: (Cr), so Z = 18 + 6 = 24; 23

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Question ID VK-074768