O, li, c for which of these elements do the outermost valence electrons experience the greatest effective nuclear charge?

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13-10-2017
Chemistry

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O, li, c for which of these elements do the outermost valence electrons experience the greatest effective nuclear charge?

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Kalahira Kalahira · Answer 1 · 2017-10-23T18:51:53+02:00

Kalahira Kalahira

23-10-2017

The effective nuclear charge of an atom = total electrons - inner electrons For O, ENC = 8 - 2 = 6 For Li, ENC = 3 - 2 = 1 For C, ENC = 6 - 2 = 4 The electrons in O experience the greatest effective nuclear charge and that is why O is smaller than C (which is smaller than Li).

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