Question

Which of the following nuclear changes is incorrect ?

• A. ${}_{20}C{a}^{40}{+}_0{n}^1{\to }_{19}{K}^{40}{+}_1{H}^1$
• B. ${}_{12}M{g}^{24}+\alpha {\to }_{14}S{i}^{27}{+}_0{n}^1$
• C. ${}_{48}C{d}^{113}{+}_0{n}^1{\to }_{48}C{d}^{112}{+}_{-1}{e}^0$
• D. ${}_{20}C{o}^{43}+\alpha {\to }_{21}S{i}^{46}{+}_1{H}^1$

Answer 1

Answer: (C)

${}_{48}C{d}^{113}{+}_0{n}^1{\to }_{48}C{d}^{112}{+}_{-1}{e}^0$

In C, conservation of atomic mass and atomic number is violated.