Explain the difference between the charge of an ion, such as a charge of 2? for

Question

Explain the difference between the charge of an ion, such as a charge of 2? for an O2? ion, and the oxidation state of an atom, such as the ?4 oxidation state of carbon in CH4.

Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer.

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Explanation / Answer

The charge 2- of O2- represents that the atom that two extra electron than it is suppoused to have according to its electronic configuration. The atom has accepted two electrons from another atom so as to attain a noble gas cofiguration.

The oxidation state of -4 of C in CH4 represents that in this molecule C is more electronegative than H, hence the bonded electron pairs are more towards C than H, so the C has excess of electron than its electronic configuartion hence negative charge. As there are 4 Hs hence C exhibit a oxidation state of -4.

Blank No. Words

1 negative (given)

2 equal to (given)

3 0

4 no

5 individual

6 are not

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