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Explain why Be has higher ionisation …

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Explain why Be has higher ionisation enthalpy than B

Posted by Sneha Gupta 6 years, 9 months ago

CBSE > Class 11 > Chemistry

3 answers

Manish Saxena 6 years, 9 months ago

The main reason for this is that Be is stable due to its fully filled electron in s-orbital .On the other hand B has one electron in p-orbital .So, B will easily loose one of its electron than Be. [Be:1s^2 2s^2 B:1s^2 2s^2 3p^1] [We know that half and fulfilled orbital are more stable tha less filled orbitals.]

2Thank You

Nitish Swan 6 years, 9 months ago

Good Explanation Chetna....

1Thank You

Shivvardhan Bakshi 6 years, 9 months ago

ionisation enthalpy means energy required to loose/take out electrons, it is higher for Be because it is more stable and has more nuclear charge due to which electrons are closely and strongly attached than in Boron i.e More energy will be required to pull out electrons from Be, so its ionisation energy is more.

3Thank You

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