1.

(e) Arrange the following elements in order of increasing ionisation enthalpy16

Answer»

fr the atomic numbers the elements here are A -- carbon , B - nitrogen , C- oxygen and D-- fluorine

so, increasing ionisation enthalpy will be A<C<B<D

then what about fluorine?

why would fluorine give its one electron and get ionised , if it can become stable by taking 1 electron. so its very tough to take one electron out of fluorine.



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