Physics
Benecke210
2016-04-09 22:56:42
Why does helium have more spectral lines than hydrogen?
ANSWERS
Samuel376
2016-04-10 02:03:15

This is because Helium has two valence electrons compared to Hydrogen which has only one. Helium has more energy levels for an electron to jump thus more spectral lines to occur. The spectral lines relating to each change of energy level would be more grouped together and hence the greater chance of them falling in the visible range.

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