When it is by itself, it is 0. depends on that the charge is and what it is paired up with
Each of the two sodium atoms in the formula for sodium oxide has an oxidation number of +1, and the oxygen atom has an oxidation number of -2.
This compound is sodium thiosulphate. S represents +6 oxidation number.
a
We can find this in bleaching powder. Chlorine shows +1 oxidation number.
It contains sodium hypochloride. Chlorine shows +1 as the oxidation number.
The oxidation number in sodium hydride are:Na +1 andH (in hydrides like this) it is -1
It contains two elements. Na shows +1. chlorine shows -1 oxidation number.
Na2[Fe(CN)5NO]·2H2O, the oxidation number of iron is +3.
The oxidation number of Sodium in the Na + ion = 1
Na2C03 Oxidation number of Na = + 1 Oxidation number of O=-2, Oxidation number of C=2x1+x+3(-2)=0 so x=4
it's 4
zero bcoz the oxidation no of element in free state is zero