Explain about the relationship between the atomic number of an element and frequency of the X-ray emitted from the elements.

Explanation

Henry Moseley studied the X-ray spectra of several elements and determined their atome numbers (Z). He noticed that the frequencies of X-ray emitted from the elements concerned could be correlated by the equation
`sqrtsigma=a(Z-b)`
Where, `sigma` = Frequency of the X-ray emitted by the element.
a and b = Constants and have same values for all the elements.
Z-Atomic number of the element.