An element ‘M’ has atomic number 11

CBSE Class 10 CBSE Class 10 Science
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1

An element ‘M’ has atomic number 11.

  1. write its electronic configuration.
  2. state the group to which ‘M’ belongs.
  3. Is ‘M’ a metal or a non-metal.
  4. write the formula of its chloride.
2

Atomic number of ‘M’ =11.

  1. Electronic configuration : 2, 8, 1.
  2. Since, the valence shell contains 1 electron, it belong to group 1.
  3. M is a metal.
  4. The formula of its chloride is MCI.