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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 2 years, 7 months ago

CBSE > Class 11 > Chemistry

1 answers

Adithya Dev 2 years, 7 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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