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Question: Answered & Verified by Expert
Among the alkali metals caesium is the most reactive because
Chemistrys Block ElementsCOMEDKCOMEDK 2018
Options:
  • A its incomplete shell is nearest to the nucleus
  • B it has a single electron in the valence shell
  • C it is the heaviest alkali metal
  • D the outermost electron is more loosely bound than the outermost electron of the other alkali metals.
Solution:
2041 Upvotes Verified Answer
The correct answer is: the outermost electron is more loosely bound than the outermost electron of the other alkali metals.
Among the alkali metals, caesium is most reactive because the outermost electron is more loosely bound than the outermost electron of other alkali metals.

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