I keep getting the wrong answer, please help and explain, Thanks! Problem 2: Con

Question

I keep getting the wrong answer, please help and explain, Thanks!

Problem 2: Consider a system with energy levels quantized as in the figure given. Ground state is-10eV, 1st exited state is-8 ev, 2nd exited state is -3 ev and finally 3rd exited state is -1 ev. -1 eV- 3 -8 eV -10 eV 0 Part (a) What is the change in energy (eV) of the system if it absorbs a photon and system moves from ground state to 3rd exited state? Numeric : A numeric value is expected and not an expression E= Part (b) What is the change in energy (eV) of the system if it absorbs a photon and system moves from 1st exited state to 2nd exited state? Numeric : A numeric value is expected and not an expression E= Part (e) What is the change in energy (eV) of the system if it emits a photon and system moves from 3rd exited state to 2nd exited state? Numeric : A numeric value is expected and not an expression E= Part (d) What is the change in energy (eV) of the system if it emits a photon and system moves from 1st exited state to ground state? Numeric : A numeric value is expected and not an expression E=

Explanation / Answer

given

n1 = 6

n2 = 2

we know that for hydrozen atom the change in energy is given by

E = RH [ (1/n12) - (1/n22) ]       where RHis = 2.18 x 10-18 J

E = 2.18 x 10-18 [ (1/36) - (1/4) ]    J

E = -0.48444444444 x 10-18 J   ANS

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