An atom is the smallest unit of an element that still maintains the physical properties of the element. Examples are: hydrogen, oxygen, gold, aluminum, neon, silver, carbon, potassium.
There are many examples of atom, 106 in fact. Look at the Periodic Table of the elements.
mesic atom
mesic atom
An atom bonded to only one atom
A non-example of an atom is a carbon atom.
Carbon dioxide is a molecule, not an atom.
is the smallest indivisible particle which can exists on its own eg. an atom of fluorine.
For example, an atom of pure einsteinium metal.
hydrogen-1 atom
The number of protons in an atom is the same as the atomic number of the element of which the atom is an example.
Oxygen is an example of an atom, gas, and an element.
A banana
Please be careful that you do not drop that fragile atom.