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Sigma KEE - Atom

原子

化学反応におけるアイデンティティを保持する非常に小さい物質の単位。AtomicNucleus と　AtomicNucleus を囲む Electrons で構成される。

Relationships
Parents	単体	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	FreeAtom	Any Atom which is not part of a Molecule.