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Activity
•
Molar mass of
226
Ra is 226,02 g/mol
•
T
1/2
of decay for
226
Ra is 1600 a
•
Thus considering 1a = 365x24x60x60s
•
and N
A
= 6,022 x10
23
mol
-1
(Avogadro-Number)
•
A
spec
for
226
Ra is 3,7x10
10
Bq/g = 37GBq/g =1Ci/g