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1.Spin Electron

Many spectral lines which actually consists of two separate grs (fine structure), eg the transition between n = 3 and n = 2.

In the Balmer series of hydrogen atoms

Theoretical prediction of single line: 6563 Å

The fact two lines spaced 1.4 Å

Normal Zeeman effect (Zeeman effect nomalous) In the normal Zeeman effect, a separate spectral line into three components

It was observed in some elements (3 separate components of spectral lines), but often ill observed 3, but was observed 4, 6 or abnormal Zeeman lebihEfek

2.Prinsip Exclusion

Exclusion Principle states that there are no two electrons in an atom can be in the same quantum state.