Examples: Cr2O3, MnO2, NiO.
Iron oxide (Fe2O3), also known as rust, is an example of an oxide of a transition element. It is a common compound that forms when iron reacts with oxygen in the presence of water or air.
Iron is classified as a transition state metal for exactly the same reason that any other element is classified as a transition state element, which is that it has incompletely filled inner electron orbitals.
Hafnium (Hf) is a natural chemical element.
Transition
Sand is primarily composed of silicon dioxide (SiO2), which is the oxide of the element silicon.
No, aluminum oxide is not an element. Indeed, nothing called an "oxide" can be an element, as this term indicates that the substance is combined with oxygen and is therefore a compound, not an element.
No. It is not. Iron is an element. Oxygen is an element. Iron Oxide is a compound.
Nickel is not an inner transition element.
Oxygen is the element. It's a compound because the oxygen bonds with another element to form an oxide.
Seaborgium is considered a transition metal.
any in column 1a, 2a, 3a-8a
Barium Oxide