Explaining the trend in terms of the polarizing ability of the positive ion |
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Date: 16-1-2018
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Date: 26-12-2018
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Date: 26-11-2018
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A small positive ion has a large amount of charge packed into a small volume of space; this is especially true if it has a charge greater than +1. An ion with a high charge density has a marked distorting effect on any negative ions which happen to be nearby. A larger positive ion has the same charge spread over a larger volume of space. Its charge density is therefore lower, and it causes less distortion to nearby negative ions.
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