Answer to Question #163272 in Molecular Physics | Thermodynamics for Satyam

Question

What is redberg constant.

Answer 1

Rydberg constant is a physical constant that is used for expression of the highest inverse wavelength of an emitted photon or the lowest inverse wavelength of a photon that is capable of ionizing an atom form the ground to an excited state. It is commonly used in the Rydberg formula to calculate the difference in energy between levels in the Bohr model:

$\frac{1}{\lambda}=Z^2R_{\infin}(\frac{1}{n_1^2}-\frac{1}{n_2^2})$

$R_{\infin}$ is the Rydberg constant here, and it equals $\approx1.09677\cdot10^7m^{-1}$ for hydrogen atom and $\approx1.09737\cdot10^7m^{-1}$ for heavy metals;

$\lambda$ is the wavelength of an emitted or absorbed photon;

Z is the atomic number;

n₁ and n₂ are principal quantum numbers of the lower and upper energy level, respectively.