Which of the following statements is not true of halogens?

Which of the following statements is not true of halogens?
  • A.
    they exist in different physical states
  • B.
    they exist as diatomic molecules
  • C.
    their ionic radii decrease down the group
  • D.
    their melting and bolling points increase down the group
Correct Answer: Option C
Explanation
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