Saved Bookmarks
| 1. |
Explain why Be has higher ionisation enthalpy than B |
|
Answer» 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.] Good Explanation Chetna.... 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. |
|