Chemistry / Chem 0049 · Atom · ~20 seconds
Atom
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An atom is the smallest particle of an element that still carries that element's properties and can take part in a chemical combination.
Show
Repeatedly halving a piece of gold eventually reaches a single gold atom, the smallest unit still recognizably gold.
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An atom is not infinitely divisible — dividing it further no longer yields smaller pieces of that same element.