# What is the formula of atomic polarizability?

## What is the formula of atomic polarizability?

The formula of polarizability is given by $\alpha = \dfrac{p}{E}$. Where, p is the dipole moment and E is the electric field. The unit of dipole moment is Coulomb x distance = Cm. The unit of electric field is Newton per coulomb = N/C.

## What is atomic polarizability?

Atomic polarizability is defined as the dipole moment induced in the atom in response to ap- plication of electric field, d = αE.

**What is value of atomic polarizability?**

α = Kr3 (1) where K is a constant. For atoms, the value of K was determined by Dmitrieva and Plindov36 through atomic oscillation theory, as 0.585, whereas Hati and Datta35 used the value of K as 0.792. Equation 1 reveals a direct relationship between atomic polarizability and the size of atoms.

**What is the unit of atomic polarizability?**

atomic unit of electric polarizability | |
---|---|

Numerical value | 1.648 777 274 36 x 10-41 C2 m2 J-1 |

Standard uncertainty | 0.000 000 000 50 x 10-41 C2 m2 J-1 |

Relative standard uncertainty | 3.0 x 10-10 |

Concise form | 1.648 777 274 36(50) x 10-41 C2 m2 J-1 |

### How do you measure polarizability?

The polarizability is then given by M = ( K – 1)4xN, in the low density approximation, where N is the gas number density and K is the dielectric constant of the gas.

### Which element has the highest polarizability?

A) Sb is the most polarizable. Its electron cloud is most easily distorted by another incoming atom, because it is largest and because it is least electronegative among the choices.

**How is polarizability measured?**

The polarizability is then given by M = ( K – 1)4xN, in the low density approximation, where N is the gas number density and K is the dielectric constant of the gas. (The experimental data are normally adjusted so that N may be taken to be the density of 1 atmosphere at 0°C.)

**Which one of the following atom are most polarizable?**

Antimony (Sb) is the most polarizable because its valence electrons are farthest from the nucleus and least tightly held.

## Which one of the following has the greatest polarizability?

Answer is : (b) I− Thus, I− ion having most polarisability.