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![[Post New]](/templates/default/images/icon_minipost_new.gif) 20 Dec 2007 11:32:24 IST
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why is the ionization potential of radium greater than that of barium?
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20 Dec 2007 12:25:27 IST
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i guess due to lanthanide contraction, radius of atom is almost same, but nuclear charge is much, much greater.
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this reply: 2 points
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Moderation Team
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