Answer:
Explanation:
Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry.
shell atomic model
shell atomic model
In the shell atomic model, electrons occupy different energy levels, or shells. The K and L shells are shown for a neon atom.
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Investigate varying electron configurations in electron shells around an atom's nucleus
Investigate varying electron configurations in electron shells around an atom's nucleus
Atomic model of electron configurations.
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