Answers

2014-01-31T17:06:26+01:00
An atom is the smallest particle of any substance. It the smallest thing in matter.
A molecule has two or more same atoms. It is two or more atoms
Examples of molecules are O2 ( oxygen gas ) , O3 ( ozone)
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2014-01-31T19:02:03+01:00
An atom is the smallest particle of an element,while a molecule is a combination of two atoms
molecules can be broken down to individual atoms,while atoms cannot
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