The smallest unit of matter that has all the properties of an element

I believe the term is Atom

Hey there.

Your answer is Atom. An atom is the smallest unit of an element that still carries the same properties of that substance to which in most cases, an atom consists of a proton, a neutron and an electron.

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the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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