1.

Choose the correct optionI.  The last electron in case of inner transition elements goes to f–orbital II.  The electron affinity is highest for fluorineIII.  Metallic radius is smaller than covalent radii IV.  Ar has lesser ionisation enthalpy than K (a)  TFFT (b)   TFFF (c)   TTTF (d)  TTFF

Answer»

Correct option  (b) TFFF



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