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Subject - Chemistry:

Basics

MCQ - 86-2272

Question:

Which statement does not explain why elements in a group are placed together?

  1. They tend to have the same number of valence electrons.
  2. They tend to have a similar oxidation number.
  3. They tend to have the same electronegativities.
  4. They tend to have a similar oxidation number.

Correct Answer: C

Explanation:

Electronegativity is not a basis for grouping of elements. Many elements belonging to different groups have the electronegativities.

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