cerium
Cerium
The most likely elements are iron, ruthenium, osmium, chromium, cobalt, nickel, molybdenum
Cl,Br and Iodine may have oxidation no +1 and -1
One example of an element that can have an oxidation number of +4 is titanium (Ti). Titanium commonly exhibits an oxidation state of +4 in its compounds.
No. Fluorine has only two oxidation states. 0 in F2 and -1 in fluoride ion
The oxidation numbers for the atoms in magnesium oxide are: Mg+2 and O-2.
those elements which can donate two electrons will possess plus two oxidation state like calcium , magnesium ,etc...
Hydrogen it depends on the other element if it is part of a compound
The sum of the oxidation states in H2SbO3 is equal to zero since the overall charge of the compound is neutral. In H2SbO3, antimony (Sb) has an oxidation state of +5, oxygen (O) has an oxidation state of -2, and hydrogen (H) has an oxidation state of +1. Summing these oxidation states gives an overall charge of zero.
Sodium - it goes from oxidation number 0 to +1
With element X having oxidation numbers +3 and +5, compounds can form with element Z having oxidation numbers -2 and -3. Some possible compounds could be XZ2 (oxidation numbers cancel out) and XZ3 (oxidation numbers cancel out).
The oxidation number of sulfur in MgSO4 is +6. This is because the oxidation state of magnesium is +2 and oxygen is always -2, so the algebraic sum of the oxidation states in MgSO4 must add up to zero.