daniece daniece

24-03-2018
Chemistry

contestada

Find the average atomic mass of neon, given the atomic masses and relative abundance of its three isotopes.
Ne-20: 19.992 amu; 90.48%
Ne-21: 20.993 amu; 0.27%
Ne-22: 21.991 amu; 9.25%

A. 20.992 amu

B. 19.992 amu

C. 20.1797 amu

D. 20.688 amu

Respuesta :

mkryukova19 mkryukova19

24-03-2018

19.992*0.9048+20.993*0.0027+21.991+0.0925 = 20.1797 amu (C)

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