Question
Asked Oct 18, 2019

The energy of a photon emitted when an electron underwent a transition to n = 3 energy level was 1.817x10-19 J. What was the initial energy level for the electron?

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Expert Answer

Step 1

The Rydberg equation i...

1
-RH
1
1
hc
1
1
-hcR
2
n
1
E -2.18x 10-18 J
1
2
2
n
Where,h Planck's constant =6.626 x 10-34 Js
c Velocity of light=3x105 m / s
RHRydberg constant =1.0974 x 10' m
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1 -RH 1 1 hc 1 1 -hcR 2 n 1 E -2.18x 10-18 J 1 2 2 n Where,h Planck's constant =6.626 x 10-34 Js c Velocity of light=3x105 m / s RHRydberg constant =1.0974 x 10' m

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