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The first ionization enthalpy of B …

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The first ionization enthalpy of B is less than first ionization enthalpy of Be . Why?

    • Posted by Shivani Kumari 3 years, 2 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Anjan Karthi 3 years, 2 months ago

    Be has an Electronic configuration of 1s2 2s2 and B has an electronic configuration of 1s2 2s2 2p1. The p 2p orbital, causing lesser shielding effect than 2s orbital, would be able to loose an electron much more easily than 2s orbital. Hence, Be has greater ionization enthalpy than B.

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