A useful rule of thumb is that if EN for the atoms involved in a bond is

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A useful rule of thumb is that if EN for the atoms involved in a bond is ≤0.4 (as it is for a C-H bond), this is close enough to zero and the bond can be considered to be nonpolar. This rule makes sense because:

(a) The electrons in the bond are shared very unequally between the atoms.

(b) The electrons in the bond are shared almost equally between the atoms.

(c) Such a low ΔEN means that there is no electron sharing.

(d) Only for a low ΔEN value will the d+ charge cancel the δ– charge.

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Related Book For  answer-question

Introductory Chemistry Atoms First

ISBN: 9780321927118

5th Edition

Authors: Steve Russo And Michael Silver

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