I really don't know and it sucks when i need help and people are giving me false answers.
Answer:
Option D.
Explanation:
When an element undergoes an alpha decay, the resulting daughter nuclei will have a decrease of 4 in the mass number and a decrease of 2 in the atomic number.
Considering the options given, only option D conform to the above illustration.
Therefore, option D represents alpha decay.
Answer:
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