 Rydberg formula

This is a section about Rydberg formula!

Rydberg formula is a very important subject about which there is a lot to say.

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For the elementary hydrogen atom derivation, see the Bohr model.

This is a section about Rydberg formula!

Rydberg formula is a very important subject about which there is a lot to say.

For example, this sentence. And then another one.