Discuss in detail why the Electron Affinity trend including any discrepancies or
ID: 840401 • Letter: D
Question
Discuss in detail why the Electron Affinity trend including any discrepancies or "bumps" in the trend is different than the Ionization Energy trend on the same Shell, i.e., the bumps are in different places. If the transition of an electron from the n = 3 state to the n = 2 state results in emission of visible light, is the transition from the n = 2 state to the n = 1 state more likely to result in the emission of infrared or ultraviolet radiation? Explain your answer with the following diagram.Explanation / Answer
A) Electron affinity ( EA) is energy released when electron is added to atom while Ionization energy (IE) is energy required to remove electron from atom
Energy released will be higher when obtained final ion has stable electron configuration in terms of EA
Energy required will be higher when atom has stable electron configuration since it is tough to remove elcetron from stable atom.
Thus EA and IE are two seperate process and has two types of variations. For example EA for sodium is relatively higher but IE is low
B) Energy gap between 2-1 is higher than 3-2 , hence photon energy for 2-1 will be higher
which means photon of 2-1 has lower wavelenghth compared to 3-2
which means 2-1 will have photon of ultra violet region
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