Class 11ChemistryClassification of Elements and Periodicity in PropertiesExtended or long form of periodic table
EasyIf an atom has electronic configuration $1s^2 2s^2 2p^6 3s^2 3p^6 3d^3 4s^2$,it will be placed in
- ASecond group
- BThird group
- CFifth group
- DSixth group
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