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when toggle format what by license comment
May 12, 2015 at 1:13 history edited ringo CC BY-SA 3.0
grammar and formatting
Sep 17, 2014 at 12:38 comment added user7232 Clearly not, but you'd expect such information to be given to you.
Sep 17, 2014 at 12:13 comment added shaima even in the exams right ?
Sep 17, 2014 at 11:57 comment added user7232 It depends on which isotope is more abundant. There should be tabulated values of these; a quick internet search will throw them up.
Sep 17, 2014 at 11:55 vote accept shaima
Sep 17, 2014 at 11:16 answer added Klaus-Dieter Warzecha timeline score: 3
Sep 17, 2014 at 10:47 review First posts
Sep 17, 2014 at 11:57
Sep 17, 2014 at 10:43 history asked shaima CC BY-SA 3.0