Principal Energy Level Change Sig Figs

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Lily Guo 1D
Posts: 64
Joined: Fri Sep 29, 2017 7:03 am

Principal Energy Level Change Sig Figs

Postby Lily Guo 1D » Wed Nov 08, 2017 3:35 pm

When you're calculating the frequency emitted from a jump in principal energy levels (i.e. n=1 to n=3), how would you determine the significant figures needed for the answer?

Lianna Kishi 1A
Posts: 23
Joined: Thu Jul 27, 2017 3:00 am

Re: Principal Energy Level Change Sig Figs

Postby Lianna Kishi 1A » Wed Nov 08, 2017 3:56 pm

I was wondering the same thing, but on past tests I just made sure to put around 3 or 4 numbers after the decimal and I didn't get marked off. Hope this helps!

SitharaMenon2B
Posts: 50
Joined: Thu Jul 27, 2017 3:01 am

Re: Principal Energy Level Change Sig Figs

Postby SitharaMenon2B » Wed Nov 08, 2017 5:21 pm

I think you can use the lowest number of sig figs that the constants are given in. For example, Planck's constant and Rydberg's constant are both given with 6 sig figs, so I think you would use 6 sig figs in your answer.


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