Class 11ChemistryClassification of Elements and Periodicity in PropertiesExtended or long form of periodic table
EasyWhat is the electronic configuration of the third element of group-$2$ in the periodic table?
- A$[Ne] 3s^1$
- B$[Ne] 3s^2$
- C$[Ar] 4s^1$
- D$[Ar] 4s^2$
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