FredericBernard
Fixed references
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+28
Abcqwe
cat
12:19
+20
added citation
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+99
Recat
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GregLarson
01:46
+24
Ed Poor
New page: An '''alpha particle''' is a positively charged particle (a Helium-4 nucleus) made up of two neutrons and two protons. It is the least penetrating of the three common f...
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