User talk:Hjchen1010
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Welcome to Wikipedia! Your contribution If the probability density at certain points for a particle is zero, does this imply that the particle cannot move across such points was deleted because there was no sign it was intended as an appropriate Wikipedia article. Did you mean to ask that as a question? If so, you can post your question at Wikipedia:Reference_desk/Science. Hope that helps. Pan Dan 16:39, 12 March 2007 (UTC)