NTA Abhyas NEET2020Chemistryp Block Elements (Group 13 & 14)Practice
Boron does not form B 3 + ion because
Options
- Ait has small size and high ionization energy
- Bit has high electronegativity
- Cit has high charge density (charge/radius ratio)
- Dnone of the above
Correct answer
A. it has small size and high ionization energy
Step-by-step solution
The total energy to produce a B 3 + ion (or the sum of the first three ionization energies) is too large to be compensated by lattice energies (in case of solids) or by hydration energies (in aqueous solution).