Atomic Structure 1
Electromagnetic radiation of wavelength is just sufficient to ionise the sodium atom. Calculate the ionisation energy of sodium in
Round off your answer to the nearest integer.
Source : This is a question from NCERT class 11.
The answer is 494.
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1 solution
E= hc/λ = 8.2085e-19J (h is planck constant). Then it's a simple matter of unit conversion.