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Question: Isotopes and elements in Maple

Question:Isotopes and elements in Maple

Christopher2222 5785 Maple 16
isotope element scientificconstants
March 05 2013
1

with(ScientificConstants):

GetElement(Ra,atomicweight);

                  

Why is it a proc?  Isn't atomic weight supposed to display the most stable isotope?  For Ra shouldn't the value displayed = 226?

Also, some isotopes are not up to date. For example Th[209] does not exist.

Just as a thought maybe someone could write a ScientificConstants updater package in the application center? 

 
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