(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A Hydrogen atom is in a state with n=2?

2. Relevant equations

r=an^2

a=.0529 nm

3. The attempt at a solution

I am confused by my book it says that the radius of a stationary state is r=.0529*2^2=.2116 but I disagree isn't the stationary state n=1 which would mean the radius is .0529 nm. I thought n=2 is the first excited state in a hydrogen atom am I wrong?

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# Homework Help: The radius of the Stationary State of a hydrogen atom

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