Calculate the frequency of thę light absorbed by a hydrogen atom during a transition of its electron from the n = 1 to the n =
3 principal energy level. Recall that for hydrogen En = -2.18 x
10-18 J(1/12) and (n = 6.63 x 10-34 Jo s).

explanation:

i think option no d is the correct answer

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i wish i could but this one is weird give me abc and i can solve it.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.