| 21. | As an alkali metal, it has one valence electron.
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| 22. | Helium II has no such valence band but nevertheless conducts heat well.
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| 23. | This excites an electron from the valence band into the conduction band.
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| 24. | The ring road of Valence features motorway except in two singular points.
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| 25. | The city of Valence is a territorial collectivity administered by a mayor.
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| 26. | Indeed, Valence has one of the largest Armenian communities in France.
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| 27. | The local fishing heritage is recorded at Valence House Museum.
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| 28. | The outcome of valence effects may be called wishful thinking.
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| 29. | He also made the distinction between normal valence and contravalence.
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| 30. | Such asymmetry in emotional valence creates another bias in language.
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