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Question
A radioactive isotope decays by
emission followed by two 
emissions. What is the change in the mass number and atomic number of the original isotope?A) The mass number decreases by 4 and the atomic number is unchanged.
B) The mass number increases by 4 and the atomic number increases by 2.
C) The mass number increases by 4 and the atomic number increases by 4.
D) The mass number decreases by 2 and the atomic number decreases by 2.
E) none of the above
Answer
This answer is hidden. It contains 1 characters.
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