The structure of tetraborane(10) is shown below. The B–H terminal bonds are shorter than the B–H bridge bonds. Explain why.

The B–H bridge bonds are longer than the terminal B–H bonds because they are weaker electron-deficient bonds.

The B–H bridge bonds are longer than the terminal B–H bonds because they have greater electron density and experience greater repulsion.

The B–H bridge bonds are longer than the terminal B–H bonds because they are ordinary covalent bonds.

The B–H bridge bonds are longer than the terminal B–H bonds because they have lesser electron density and experience greater repulsion.