9.90 AMU is the mass of 32.967% of the atoms of Platinum. The masses and isotopic...

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isotopas of 193. 96 Pt 194 97 Pt 19S.97 Pt Platinum mass m, 193.96 m2- 194 97 m219S-97 (in amu) a3 33187 % abundamre X2 33-8u

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