Examlex
In a circuit powered by a battery it is correct to say that electrons flow
Atomic Nuclei
The central core of an atom containing protons and neutrons, around which electrons orbit.
Element
Substance composed of atoms of only one kind.
Chemical Characteristics
Properties or behaviors of substances that describe their composition, reactivity, and the changes they undergo during chemical reactions.
Atom
The basic unit of a chemical element, consisting of a nucleus of protons and neutrons, and electrons orbiting the nucleus.
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