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Atomic physics is the field of physics that studies atoms as an isolated system of electrons and an atomic nucleus. It is primarily concerned with the arrangement of electrons around the nucleus and the processes by which these arrangements change. This includes ions as well as neutral atoms and, unless otherwise stated, for the purposes of this discussion it should be assumed that the term atom includes ions.

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Can a single atom explode?

Does the definition of an atomic explosion require the interaction of two or more atoms, or can a single atom be the source of an explosion? Another way of phrasing the same question. Can there be an …
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