Molecules can be made up of two atoms of the same element for example oxygen gas is made up only of oxygen atoms.
<h3>Molecules of an element :</h3>
Two or more atoms of the same or different element that are joined together to form a molecule are referred to as molecules. A molecule can be heteronuclear, which is a chemical compound made up of more than one element, like water, or homonuclear, which means it is made up of atoms of one chemical element, like oxygen (O2) (H2O).
<h3>Difference between molecule and compound :</h3>
When two or more atoms from the same element chemically combine, a molecule is created. A compound is created if the types of atoms differ from one another. Not all molecules are compounds because some molecules, like ozone (O3) and oxygen gas (pictured above), only contain one type of atom or element.
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