The wavelength is obtained as 122 nm. Option A
<h3>What is the wavelength?</h3>
We know that from the Bohr model of the atom, an electron can move from a higher energy level to a lower energy level or from a lower energy level to a higher energy level. This is the idea of energy quantization as put forward by Neill Bohr.
The wavelength can be obtained by the use of the formula;
1/λ = RH(1/n^2initial - 1/n^2 final)
λ = wavelength of the emitted light
RH = Rydberg's constant
n intial = initial energy level
nfinal = final energy level
Thus;
1/λ = 1.09 * 10^7(1/1^2 - 1/2^2)
1/λ = 1.09 * 10^7( 1 - 0.25)
λ = 122 nm
Learn more about the wavelength:brainly.com/question/13533093
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V=2 L
Vm=22.4 L/mol
n=V/Vm
n=2/22.4=0.0893 mol
I think the correct answer from the choices listed above is option B. The first step when measuring out an acid would be f<span>ind the bottle it comes in and pour the acid into a beaker. This should be done to first make sure that this substance is an acid. Hope this answers the question.</span>
The marshmallow would be the system
