Question

Statement I: $K$ is considered to be a metal.
Statement II: When $K$ becomes an ion its atomic radius increases.

• A. True, false
  
• B. False, true
  
• C. True, true, correct explanation
• D. True, true, not correct explanation

Answer 1

The correct option is A True, false

Statement I : $K$ is considered to be a metal. It has one valence electron which it readily looses to form cation.
Statement II : When $K$ becomes an ion its atomic radius decreases.
The ionic radius of a cation is always smaller than the radius of neutral atom as cation contains one less electron shell than neutral atom.