engineering recuitment UKPSC AE Civil 2021 Mock Test (Re-Exam) Physics Nuclear Physics Radioactivity
In a radioactive decay, an element \({z^X}^A\) emits four α- particles, three β- particles and eight gamma photons. The atomic number and mass number of the resulting final nucleus are
1
Z – 11, A - 16
2
Z – 5, A - 13
3
Z – 5, A - 16
4
Z – 8, A - 13