Homework Help Forum: Chemistry

Posted by Courtne on Sunday, November 1, 2009 at 9:26pm.

Which is the smallest particle among the particles below? a. cesium atom b. cesium ion c. oxygen atom d. oxygen ion e. not enough information

• Chemistry - DrBob222, Sunday, November 1, 2009 at 9:29pm

  Look at the periodic table. Generally, going down the table increases the size. Going from left to right in the table decreases the size. Taking electrons away from an atom decreases the size and added electrons increases the size. That should give you a very good idea of the smallest.

  
  

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