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Problem 49 Easy Difficulty

(I) How much energy is needed to ionize a hydrogen atom in the $n=2$ state?

Answer

3.4 $\mathrm{eV}$

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Top Physics 103 Educators
Christina K.

Rutgers, The State University of New Jersey

Andy C.

University of Michigan - Ann Arbor

LB
Liev B.

Numerade Educator

Marshall S.

University of Washington

Video Transcript

to find out much energy is needed to wear a nice the hydrogen atom. A question to state Well, basically, Bobby one is to race the energy from you. You too to e infinity. We know that infinity is when energy is cost zero right, Because this is the reference point. This is where the that is so nice And it's who is he? Negative energy value, right? It's related by ah negative 13.60 fee. But by one over in squared. So you energy required toe on Isis You take tea. Final energy Manistee Initial energy. So you finally is zero My last initial which is negative 13.6 times one over to square. It gives us 3.4 TV.

National University of Singapore
Top Physics 103 Educators
Christina K.

Rutgers, The State University of New Jersey

Andy C.

University of Michigan - Ann Arbor

LB
Liev B.

Numerade Educator

Marshall S.

University of Washington