When a radioactive element emits an electron the daughter element formed will have

Options :
  1. mass number one unit less
  2. atomic number one unit less
  3. mass number one unit more
  4. atomic number one unit more
Answer and Explanation :-

Answer: Option 4

Explanation:

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Of all the wonders that I have heard,It seems to me most strange that men should fear Seeing death, a necessary end,Will come when it will come.(Act II, Scene )
-William Shakespeare Julius Caesar