Elements with 4 or 5 or 6 or 7 electrons in their valence shell are ________.
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⠀⠀ ⠀ ⠀⠀ Those elements with 4, 5, 6, or 7 in their outermost shell are the nonmetals. Example 4: Helium (with its 2), neon, argon, and krypton (each with 8) have "filled" their outermost shells. They are the so-called inert or "noble" gases
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