Hydrogen it depends on the other element if it is part of a compound
Sodium - it goes from oxidation number 0 to +1
The oxidation number of Na in NaCl is +1, while the oxidation number of Cl in NaCl is -1.
The halogens (group 17) have an oxidation number of -1, though the halogens below fluorine can have other oxidation numbers as well. Hydrogen can also have an oxidation number of -1 when it forms hydrides.
The oxidation number for the ion fluoride Fl- is always -1 in compounds. If you meant the element fluorine F2, then the oxidation number is 0.
The oxidation number of an element tells us the possible charge that the element possesses at that instant. So, in the case of Lithium, it generally has a +1 oxidation state, meaning that it exists generally as a positive ion with charge +1. In the case of Beryllium, which is a Group-2 element, it has a tendency of losing two electrons and remaining in a +2 ionic state. Hence, its oxidation number is +2. Like that, the general state of an element is determined taking into consideration their d-orbitals and stability.
Sodium - it goes from oxidation number 0 to +1
Cl,Br and Iodine may have oxidation no +1 and -1
In compounds fluorine, F, has an oxidation number of -1.
The oxidation number of Na in NaCl is +1, while the oxidation number of Cl in NaCl is -1.
The oxidation number tells you the "combining power" of that element. For example, if Cu has a 1+ oxidation number then it will combine with Cl in a 1:1 ratio, and result in CuCl. If Cu has an oxidation number of 2+, then it will combine with Cl in a 1:2 ratio, and result in CuCl2.
The halogens (group 17) have an oxidation number of -1, though the halogens below fluorine can have other oxidation numbers as well. Hydrogen can also have an oxidation number of -1 when it forms hydrides.
Hydrogen has an oxidation number of +1 in most of its compounds and -1 in metal hydrides and hydrocarbons.
The oxidation number for the ion fluoride Fl- is always -1 in compounds. If you meant the element fluorine F2, then the oxidation number is 0.
The oxidation number of an element tells us the possible charge that the element possesses at that instant. So, in the case of Lithium, it generally has a +1 oxidation state, meaning that it exists generally as a positive ion with charge +1. In the case of Beryllium, which is a Group-2 element, it has a tendency of losing two electrons and remaining in a +2 ionic state. Hence, its oxidation number is +2. Like that, the general state of an element is determined taking into consideration their d-orbitals and stability.
2-
Na: +1 Cl: -1
hydrogen has three oxidation states.They are plus 1 zero and -1