91Ó°ÊÓ

An electron and a proton are$\mathrm{d}=4.30\text{ n³¾}$ apart.

Using the concept of the electric dipole moment, the value of the dipole moment for an electron and a proton can be calculated. Again, the direction of the dipole directs from a negative charge to a positive charge.

Formula:

The magnitude of the dipole moment is given by, $\mathrm{p}=\mathrm{qd}$ (i)

where, q is the positive charge in the dipole and d is the separation of the charges.

For the dipole described in the problem, using the given data in the equation (i), we can get the electric dipole moment as given:

$\begin{array}{c}\mathrm{p}=\left(1.60\mathrm{x}{10}^{−19}\text{ C}\right)\left(4.30\mathrm{x}{10}^{−9}\text{″¾}\right)\\ =6.88\mathrm{x}{10}^{−28}\text{C}â‹\dots \text{m}\end{array}$

The dipole moment is a vector that points from the negative toward the positive charge.

Hence, the value of the dipole moment is $6.88\mathrm{x}{10}^{−28}\text{ C}â‹\dots \text{m}$