The oxidation state of oxygen is not -2, it is 0 - because oxygen is an element.
Oxide, however, has oxidation state of -2. This is because the anion is O2- and the oxidation state of ions is equal to the charge held by the ion.
The exception for oxide is that the oxidation state is -1 in peroxides e.g. H2O2 (hydrogen peroxide)
Hydrogen has only 1 valence electron. It can accept one more to get the electronic configuration of nearest noble gas. So, when hydrogen accepts one electron its oxidation number is -1.
Oxygen has 6 valence electrons. It needs to gain two more to complete octet. So oxygen has an oxidation number of -2 when it gains 2 electrons (as in oxide ion)
-2 is not possible but 1 is possible
Its oxidation number is -1, which is uncommon for hydrogen.
In LiH the oxidation number of Li (lithium) is 1+ and the oxidation number of H (hydrogen) is 1-
hydrogen has three oxidation states.They are plus 1 zero and -1
Usually the oxidation no of oxygen is -2 and the oxidation no of hydrogen is +1 in a compound.
+1 for hydrogen
Hydrogen's oxidation number is +1.Chlorin's oxidation number is +1.Oxygen's oxidation number is -2.
Its oxidation number is -1, which is uncommon for hydrogen.
Hydrogen gas (H2) Oxidation number is 0. Hydrogen (H+) is +1.
Contrast hydrogen don't exist. Hydrogen oxidation numbers are +1 and -1.
Hydrogen is a light gas. It generally shows +1 oxidation number.
In LiH the oxidation number of Li (lithium) is 1+ and the oxidation number of H (hydrogen) is 1-
hydrogen has three oxidation states.They are plus 1 zero and -1
Usually the oxidation no of oxygen is -2 and the oxidation no of hydrogen is +1 in a compound.
1+ is the normal oxidation number for hydrogen
1+
+1 for hydrogen
+1