1.

5. The first ionization enthalpy of Boron is slightly less than that ofBeryllium. Give reason.

Answer» <p> The electronic confirmation of Beryllium is 1s2 ,2s2 </p><p>and for boron it is 1s2 ,2s2 ,2p1 </p><p>so, the outer electron will be released easily giving less energy, to make the boron more stable.</p>


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