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why H has a smaller atomic radius than He
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Topic: why H has a smaller atomic radius than He (Read 3310 times)
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alexanda
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why H has a smaller atomic radius than He
«
on:
August 11, 2014, 05:21:06 AM »
For period 2,3 and4, atomic radius decreases from metals to non metals and it is because the nuclear charge rises gradually
But why He has a larger atomic radius than H instead of smaller?shielding effect between H and He has no change
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Ben Bob2
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Re: why H has a smaller atomic radius than He
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Reply #1 on:
August 11, 2014, 11:30:53 AM »
There are conflicting views of which radius is greater, due to the difficulty of measuring helium's radius (as it does not form many stable compounds).
http://www.physicsforums.com/showthread.php?t=719342
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alexanda
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Re: why H has a smaller atomic radius than He
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Reply #2 on:
August 11, 2014, 10:19:07 PM »
Okay thx a lot!
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why H has a smaller atomic radius than He