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Question

Name a nonmetal which has only one electron in its outermost shell.


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Solution

  • Non-metals are electro-negative because they are formed by gaining electrons.
  • The outermost shell of non-metals contains 4 to 8 electrons.
  • The exceptional cases are Hydrogen and Helium, which have one and two electrons respectively in their outermost shell.
  • Hydrogen contains one electron in its K shell and shows non-metallic characteristics.
  • Hydrogen is present in the form of gas and chemically represented as H11.

Therefore, Hydrogen is a non-metal that has only one electron in its outermost shell.


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