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Question Number 18568 by Tinkutara last updated on 24/Jul/17

The energy required to dislodge electron  from excited isolated H-atom, IE_1  =  13.6 eV is  (1) = 13.6 eV  (2) > 13.6 eV  (3) < 13.6 eV and > 3.4 eV  (4) ≤ 3.4 eV

$$\mathrm{The}\:\mathrm{energy}\:\mathrm{required}\:\mathrm{to}\:\mathrm{dislodge}\:\mathrm{electron} \\ $$ $$\mathrm{from}\:\mathrm{excited}\:\mathrm{isolated}\:\mathrm{H}-\mathrm{atom},\:\mathrm{IE}_{\mathrm{1}} \:= \\ $$ $$\mathrm{13}.\mathrm{6}\:\mathrm{eV}\:\mathrm{is} \\ $$ $$\left(\mathrm{1}\right)\:=\:\mathrm{13}.\mathrm{6}\:\mathrm{eV} \\ $$ $$\left(\mathrm{2}\right)\:>\:\mathrm{13}.\mathrm{6}\:\mathrm{eV} \\ $$ $$\left(\mathrm{3}\right)\:<\:\mathrm{13}.\mathrm{6}\:\mathrm{eV}\:\mathrm{and}\:>\:\mathrm{3}.\mathrm{4}\:\mathrm{eV} \\ $$ $$\left(\mathrm{4}\right)\:\leqslant\:\mathrm{3}.\mathrm{4}\:\mathrm{eV} \\ $$

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