1. Tardigrade
  2. Question
  3. Chemistry
  4. An element M has an atomic number 9 and atomic mass 17. Its ion will be represented by -

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Q. An element M has an atomic number 9 and atomic mass 17. Its ion will be represented by -

Classification of Elements and Periodicity in Properties

Solution:

The element is halogen and has one less electron than inert gas configuration, hence can be represented as $M^{-}$ ion.