A positron is emitted from . The ratio of the atomic mass and atomic number in the resulting nuclide — Nuclear Chemistry and Radioactivity Chemistry Question

💡 Solution & Explanation

Positron emission decreases the atomic number by 1 (from 11 to 10, forming Neon) while the mass number remains 23. The new nuclide is ${}_{10}\text{Ne}^{23}$, so the ratio is 23/10. Therefore, correct answer is C.