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Posted by on Sunday, December 2, 2012 at 11:57pm.

Place the following elements in order of decreasing atomic size: selenium, chlorine, fluorine, rubidium, calcium, and sulfur.

  • Atomic Size - , Monday, December 3, 2012 at 12:05am

    Oh this is easy. I want you to take a look at your periodic table. Any elements that's toward the left and down are larger in Atomic size. So for instance rubidium is the largest in atomic size due to it further down and to the left.

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