A group of more than one atom joined together that acts like a single particle
is called a molecule if the atoms are joined by chemical bonds.
a molecule
Only halogens and members of the oxygen group can form diatomic molecules joined by a single covalent bond.
Atoms bond with each other to form a molecule. When a molecule has an overall charge, they can act as a single unit to bond with another ion. Examples are sodium 'carbonate' and magnesium 'sulfate'.
Atoms are just a single atom, obviously. Molecules are at least two atoms joined chemically, as opposed to a compound, which is at least two different elements joined together. For example, a single atom of Oxygen would be O. An oxygen molecule would be O2, O3, etc. A compound would be Oxygen and another element, such as Hydrogen, combined to make H2O (water, two Hydrogen, one Oxygen) or H3O (hydrogen peroxide, 3 oxygen, one hydrogen). This means that water is both a molecule (two or more atoms joined together) AND a compound (two or more atoms of different elements combined together). All compounds are molecules, but not all molecules are compounds.
The only group of neutral elements is the noble gases. They are in group 0. They are electronically stable elements that do not tend to react. They exist as single molecules.
Molecule
a molecule
Elements are those substances which have same constituent particle altogether. Molecules are a group of atoms joined together . Atoms of elements join together to form a molecule.
A molecule.
a coalition Political parties are groups of people joined together for political purposes.
You think probable to a polymer.
union
it is called a complex
Such a group is often called a "radical".
Tissue is a group of organ joined together.
Confederation
Engineering Team.