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MHT CET Chemistry question

ChemistryClassification of Elements and Periodicity in PropertiesMHT CET

Among the following series of transition metal ions, the one in which all metal ions have , electronic configuration is (Atomic no. of Ti = 22; V = 23; Cr = 24, Mn = 25)

Answer: (D)

Solution

The neutral atoms have 4 (Ti), 5 (V), 6 (Cr) and 7 (Mn) electrons outside the [Ar] core, so (with empty 4s) needs charges +2, +3, +4 and +5

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Question ID VK-074880