Radium is a decay product of uranium, thorium or neptunium.
There are two elements that make up the compound NaBr, or sodium bromide. These two elements are sodium and bromine.
Zinc and Calcium
Two or more elements can combine into a compound.
atoms and elements
Oxygen and silicon are the two elements that make up 75 percent of the total mass of the crustal rocks on Earth.
The two principal elements are Carbon, and Hydrogen. However, crude oil is the natural product of millions of years of biological decay. As a consequence, other elements present are ;- oxygen, nitrogen, sulphur, chlorine, phosphorus and probably many more trace amopunts of elements.
Calcium (Ca) and Oxygen (O) are the two elements that make up calcium oxide.
Iron is NOT made up of two elements. Iron is an element in its own right. It is found in the Periodic Table of Elements as 'Fe'. 'Fe' is the initials of the Latin name for iron, which is Ferrum. However, iron is mined as iron ore, which is an oxide of iron. It is a chemical combination of iron and oxygen. These are possibly the two elements you are thinking about. As oxides of iron can be found in different forms ( oxidation states). They Are. :- Fe3O4 ; Magnetite. (Lodestone of early navigation). Fe2O3 ; Iron (III) Oxide [ Ferric oxide) the common iron ore. FeO ; Iron (II) Oxide (Ferrous oxide) FeS ; Iron (II) Sulphide (Much less common. Iron metal is NOT found uncombined.
There are two elements that make up the compound NaBr, or sodium bromide. These two elements are sodium and bromine.
PotassiumFluorine
Hydrogen and fluorine are the two elements that make up hydrogen fluoride (HF).
The two elements that make up most of the oceans are hydrogen and oxygen, forming water molecules.
two or more different elements
Power and legitimacy
Iron and oxygen
Zinc and Calcium
A molecule of water, which has the formula H2O, is made up of the elements hydrogen and oxygen.