X2O3 as elements in group IIIA are trivalent metals and oxygen is divalent
RbO is not an element, but there are two elements in it . . . Rubidium and Oxygen. It would be called, "Rubidium Oxide".
Metal X belongs to Group 2 in the Periodic Table, also known as the alkaline earth metals.
The element symbol for silicon is Si, and the chemical formula for silicon oxide is SiO2.
By the fact that it is named 'mercury oxide' , it is NOT an element. It contains the elements 'Mercury' and Oxygen'.
It is the first element in group 12 (IIB) of the periodic table.
It stands for Potassium oxide. It isn't an element, it's a compound.However the correct formula for potassium oxide is K2O and not KO.
RbO is not an element, but there are two elements in it . . . Rubidium and Oxygen. It would be called, "Rubidium Oxide".
If X is an element from group 1 (alkali metals), the formula of its oxide would be X2O. Alkali metals have a +1 oxidation state, which combines with the -2 oxidation state of oxygen to form a neutral compound.
Metal X belongs to Group 2 in the Periodic Table, also known as the alkaline earth metals.
Iron oxide is not on the periodic table because it is a compound and the periodic table is only for elements.The elements that make up iron oxide (iron and oxygen) can be found on it however.Iron is near the top and middle of the periodic table and has the symbol Fe.Oxygen is near the top-right corner and has the symbol O.
The element symbol for silicon is Si, and the chemical formula for silicon oxide is SiO2.
By the fact that it is named 'mercury oxide' , it is NOT an element. It contains the elements 'Mercury' and Oxygen'.
It is the first element in group 12 (IIB) of the periodic table.
NO is a compound called nitrous oxide and is not on the periodic table. It is a combination of Nitrogen and Oxygen (N for nitrogen and O for oxygen) Periodic table lists only elements and not compounds.
The general chemical formula for a metal oxide is MO, where M represents the metal element. The chemical formula for water is H2O.
The correct formula for copper(I) cyanide is CuCN.
Calcium is a chemical element that falls under the category of metals in the periodic table. It is classified as an alkaline earth metal due to its properties and location in the group 2 of the periodic table.