There is no oxidation number, nor are there common oxidation states for helium, so 0.
Helium does not form any known stable compounds, and thus it is nearly always in the 0 oxidation state.
Zero. Elemnts always have a zero oxidation state hoever they are bonded. Helium is a noble gas, monoatomic and forms no compounds so as it happens it is always zero.
No as it doesn't as it doesn't form compounds. The only possible oxidation number is zero for elemental helium
The oxidation state of calcium in calcium hydride is +2, as calcium typically forms ionic compounds with a +2 oxidation state.
Zinc is in oxidation state +2 and oxygen in oxidation state -2. Zinc Oxide itself has not net charge/oxidation state.
0 oxidation state
The oxidation state of carbon in methanol (CH3OH) is +2. This is because oxygen has an oxidation state of -2 and hydrogen has an oxidation state of +1, so the carbon must have an oxidation state of +2 to balance the charges in the molecule.
the oxidation state of beryllium is +2
In NH4F, nitrogen has an oxidation state of -3, hydrogen has an oxidation state of +1, and fluorine has an oxidation state of -1.
The oxidation state of oxygen in HOF (hypofluorous acid) is +1. Oxygen typically has an oxidation state of -2 in compounds, but in this case, since fluorine is more electronegative, oxygen has an oxidation state of +1 to balance the charge of the molecule.
Oxidation state of O is -2.Oxidation state of S is +4.
The oxidation state of Boron in BO3^-3 is +3. This is because the overall charge of the ion is -3, and each oxygen atom has an oxidation state of -2. Hence, the Boron atom must have an oxidation state of +3 to balance the charges.
Scandium has a higher oxidation state than calcium. Scandium typically exhibits a +3 oxidation state, while calcium usually shows a +2 oxidation state.
The oxidation state of boron in Na2B4O7 is +3. This is because boron typically exhibits an oxidation state of +3 in its compounds due to its electron configuration and bonding characteristics.
The oxidation state of chlorine in bleaching powder (CaOCl2) is +1. This is because calcium has an oxidation state of +2 and oxygen has an oxidation state of -2, so the total charge must be balanced by the chlorine with an oxidation state of +1.
The oxidation state of phosphate (PO4) is -3. This is because oxygen (O) typically has an oxidation state of -2, so there are 4 oxygen atoms in the phosphate molecule, contributing to a total charge of -8. This leaves the phosphorus atom with an oxidation state of +5 to balance the overall charge to -3.
oxidation state