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Radioactive isotope

April 6, 2017

FredericBernard
Changed category to radioactivity
m
13:45
+7

July 1, 2016

DavidB4-bot
→‎References: Spelling, Grammar, and General Cleanup
15:46

May 2, 2011

DavidE
cleaned up intro
19:24
+74

May 4, 2007

Lgm
It's an estimate, not a calculation. The range of validity of carbon dating is an important thing about it, and particularly interesting for kids.
22:54
+36

April 30, 2007

Philip J. Rayment
Revert category (I didn't realise the other one was there).
14:23
-22
Philip J. Rayment
More wikilinking; remove title for style reasons; categorise
14:22
+34
Philip J. Rayment
Wikilink, remove ideologically-based and unnecessary comment
14:20
-5

April 11, 2007

Jaques
no edit summary
05:07
+21

March 28, 2007

January 5, 2007

DeborahB.
no edit summary
01:46
+188

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