A mole.
Molecule
The smallest unit of a compound is a molecule (MOLL-uh-kule)
the molecule
ionic compound
The smallest fundamental unit of a covalent compound is called a molecule. It is formed when two or more atoms share electrons to become stable.
If it is a molecular compound, the smallest unit is called a molecule. If it is an ionic compound, the smallest unit is called a formula unit.
Two or more elements that are chemically bonded form a molecule of a chemical compound. This is the simple and direct answer to a good basic chemistry question. A molecule. However, if the chemical bond is ionic (like in a salt), it isn't called a molecule, but instead a compound. There are no salt molecules!
A group of atoms that act as a unit is called a molecule.
particles called atoms are the smallest unit. Several atoms combine to make a molecule and molecules are what form substances such as water
This is a covalent compound.
The simplest structured unit of a compound is called a molecule.
In a molecule this is the cation.In the atomic nucleus this is the proton.