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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Blong on September 27, 2021, 10:09:39 PM

Title: Quantum numbers
Post by: Blong on September 27, 2021, 10:09:39 PM

How do I find the 4 quantum numbers that describe the seven electrons in bromine’s fourth shell? I believe n =4 for all of them, but I don’t know how to find l, ml, or ms, for the rest

Title: Re: Quantum numbers
Post by: Borek on September 28, 2021, 03:48:20 AM

What are their possible values? Do you know Aufbau principle?

Title: Re: Quantum numbers
Post by: Blong on September 28, 2021, 06:32:56 AM

 Yes, but I’m confused as how to do it, as I wrote down 1 for all of the L values, and he (My teacher) marked two of them incorrect. A similar situation also happened with ml.

Title: Re: Quantum numbers
Post by: Borek on September 28, 2021, 09:04:47 AM

Can you list all combinations you wrote?

Some of them will fail one of the rules, but it is hard to point you in the right direction without an example.