Although boron (b) is smaller in size than beryllium (be). but first ionisation enthalpy of beryllium(be) is higher than boran (b) why.
Answers
Answered by
1
We know half filled and full filled orbitals are stable.
Be: 1s2, 2s2
B: 1s2, 2s2, 2p1
Thus, B will be stable removing an electron. But Be is already stable as it has ful fulled orbital s2. After removal of one electron it will also go to a half filled orbital s1 though, yet Be has higher ionisation energy than B.
Be: 1s2, 2s2
B: 1s2, 2s2, 2p1
Thus, B will be stable removing an electron. But Be is already stable as it has ful fulled orbital s2. After removal of one electron it will also go to a half filled orbital s1 though, yet Be has higher ionisation energy than B.
Similar questions