| 21. | Likewise, " methane " is written as CH 4 even though carbon is more electronegative.
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| 22. | By adding electronegative substituents and changing the hybridisation of the central atoms, bond lengths can be manipulated.
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| 23. | A nucleus in the vicinity of an electronegative atom experiences reduced electron density and the nucleus is therefore deshielded.
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| 24. | Also when the electronegative atom is removed further away the effect diminishes until it can be observed no longer.
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| 25. | NCI can be used for the analysis of compounds containing acidic groups or electronegative elements ( especially halogens ).
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| 26. | For example, the water molecule H 2 O has an electronegative oxygen atom that attracts a negative charge.
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| 27. | This localization of charge is accommodated by the fact that the terminal ligands are highly electronegative in hypervalent molecules.
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| 28. | If the central atom X is strongly electronegative, then it strongly attracts the electrons of the oxygen atom.
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| 29. | As one moves down the table, the substituents become more electronegative and the bond angle between them decreases.
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| 30. | Electronegative groups in the ortho position of the aryl halogen are known to be strongly activated toward Ullman reaction.
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