Question

Draw the electron dot structure of the hydroxyl ion.

Answer 1

Part 1: Electron dot structure

1. It is the diagrammatic representation of the chemical bond between the atoms of the molecules.
2. It is also known as Lewis dot structure.
3. While writing dot structure, the number of valence electrons is mentioned on the element.

Part 2: Hydroxyl ion.

1. The ion formed as a result of the release of ${\mathrm{H}}^{+}$ ion from ${\mathrm{H}}_2\mathrm{O}$ molecule.
2. The shared electron after the release of ${\mathrm{H}}^{+}$ remains with $\mathrm{O}$ atom.
3. ${\mathrm{H}}_2\mathrm{O}\to {\mathrm{H}}^{+}+{[\mathrm{H}-\underset{\circ \circ }{\overset{\circ \circ }{O}}{}_{\circ }^{\circ }]}^{-}$

Dot structure of hydroxyl ion

$\mathbf{}{\mathbf{[}\mathbf{}\mathbf{H}\mathbf{-}\underset{\mathbf{\circ }\mathbf{\circ }}{\overset{\mathbf{\circ }\mathbf{\circ }}{\mathbf{O}}}{\mathbf{}}_{\mathbf{\circ }}^{\mathbf{\circ }}\mathbf{]}}^{\mathbf{-}}$