Chemistry 10th Edition

by Whitten, Kenneth W.; Davis, Raymond E.; Peck, Larry; Stanley, George G.

Published by Brooks/Cole Publishing Co.

ISBN 10: 1133610668

ISBN 13: 978-1-13361-066-3

Chapter 5 - Chemical Periodicity - Exercises - Oxygen and the Oxides - Page 204: 63

Answer

Oxygen has a positive oxidation state when combined with Fluorine.

Work Step by Step

Oxygen has a positive oxidation state when combined with Fluorine. Fluorine is the most electronegative element hence it always has a negative oxidation state. The oxidation state of Fluorine in all compounds is $-1$. When oxygen is combined with Fluorine, Oxygen develops a $+2$ oxidation state. The electronegativity of Fluorine is 4.0. The electronegativity of oxygen is 3.5.

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