In all compound except when combined with F or in a peroxide O has an oxidation number of

A pure element (not in combination) will have an oxidation number of

The sum of the oxidation numbers of all atoms in a netrual compound is

If an atom gives up two electrons it becomes an ion with a charge of

When hydrogen combines with a metal, the oxidation number of hydrogen is

When an atom gains an electron what has taken place?

In the compound CaO if O has an oxidation number of -2 what is the oxidation number of Ca?

If H has an oxidation number of +1 and S has an oxidation number of-2 what will be the correct chemical formula for a compound containing only those two elements?

All elements in Group 1 of the periodic table have an oxidation number of

In a compound where elements gain or loss electrons a ____________________ bond is formed.

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