explain with the help of examples the difference between an atom and a molecule
Answers
An atom has a nucleus surrounded by electrons. ... But when three oxygen atoms combine to form an O3 molecule, it becomes Ozone. So another difference between atoms and molecules is that when similar atoms combine together in varying numbers, molecules of different properties can be formed.
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Answer:
An atom is the smallest particle of an element that shows all
properties of the element. An atom may or may not have
independent existence. For example, a molecule of oxygen or
nitrogen gas contains two atoms.
A molecule is the smallest particle of an element or a compound that
is capable of independent existence and has the properties of that
element or compound. A molecule of an element may contain one or
more atoms of the same kind. For example, the element helium is a
one-atom molecule, while an oxygen gas molecule is formed of two
oxygen atoms. A molecule of a compound contains two or more
atoms of different elements, for example, CO2; NaOH.