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  Atom

Sigma KEE - Atom

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atome
An extremely small unit of matter that retains its identity in Chemical reactions. It consists of an AtomicNucleus and Electrons surrounding the AtomicNucleus.
Relationships      
Parents substance �l�mentaire The Class of PureSubstances that cannot be separated into two or more Substances by ordinary chemical (or physical) means. This excludes nuclear reactions. ElementalSubstances are composed of only one kind of atom. Examples: Iron (Fe), copper (Cu), and oxygen (O_2). ElementalSubstances are the simplest PureSubstances.
Children FreeAtomAny Atom which is not part of a Molecule.


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