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A certain element has an atomic number z = 38. Using the Bohr model estimate the...

A certain element has an atomic number z = 38. Using the Bohr model estimate the wavelength of the Ka X-ray

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Answer #1

For an electronic transition from state n2 to n1 wavelength of the photon emitted is given by

Z is the atomic number of the element and R is Rydberg constant.

For transition takes place from n2=2 to n1=1

Also we must take in account the screening effect of the electrons which reduce the effective nuclear charge from Z to Z-1

So we have

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