Question 2: NCERT Solutions for 12th Class Physics: Chapter 13-Nuclei
The three stable isotopes of neon :
and have respective abundances of 90.51%, 0.27% and 9.22%. The atomic masses of the three isotopes are 19.99 u, 20.99 u and 21.99 u, respectively. Obtain the average atomic mass of neon.
Average atomic mass of neon with the given abundances,
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NCERT Solutions for 12th Class Physics: Chapter 13-Nuclei