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Physics 23 Online
OpenStudy (anonymous):

Which is an example of an atom? A) The smallest unit of Ne. B) The smallest unit of P4. C) The smallest unit of NH3. D) The smallest unit of H2O.

OpenStudy (anonymous):

A is the only atom there, all of the others are molecules.

OpenStudy (anonymous):

The smallest unit of Ne would be the correct answer. The other options represent group of atoms i.e. molecules.

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