Definition of mono atomic molecule and examples?

Answer 1

monoatomic is when a molecule is made up of only one kind of atom .Diatomic is when molecules are made up of two kinds of atoms.

The answer is entirely incorrect ! For example the molecule of hydrogen H2 is made up of one kind of atom (say Hydrogen-1) and is NOT MONOATOMIC ! It is simply diatomic. The molecule of NO2 is made of two kinds of atoms but it is NOT DIATOMIC !. It is TRIATOMIC.

The correct answer should be:

The monoatomic molecule is a molecule that contains only one atom and is able to exist nonbonded to other neighboring species. Examples of monoatomoc molecules are atoms of He, Ne, Ar, Kr, Xe.

The diatomic molecule is a molecule that is composed of TWO atoms (either the same or different) and is able to exist nonbonded to other neighboring species.

Examples: H2, N2, NO, HCl.

I think someone placed that previous answer to have 100% warranty for the discussion.

Answer 2

monoatomic means there is just one atom in the molecule like N or F. Diatomic means there are 2 atoms in the same molecule. These can be the same atom or different atoms like Cl2, H2, or CO, HF.

Answer 3

A monoatomic molecule is a molecule composed of a single atom. Examples include noble gases such as helium (He), neon (Ne), and argon (Ar), which exist as individual atoms and do not form chemical bonds with other atoms.

Answer 4

Mono atomic molecules are molecules that exist as single atoms in nature.

Helium, Neon, Argon are few examples. They remain as mono atomic molecules as they are inert gases.

Answer 5

Monoatomic molecule: Sodium

Polyatomic: Boron