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Name three elements that have a single electron in their outermost shells. (b) Name two elements that have two electrons in their outermost shells. Name three elements with completely filled outermost shells.

ChemistryClass 10ICSEAnswered 27 Mar 2026
Answer
  • Lithium, Sodium, Potassium are the elements having single electron in their outermost
  • Magnesium, Calcium has two electrons in the outermost shell
  • Helium, Neon, Argon are completely

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