Answer:
its b beacuse different things have different mass
Okay I did the math and I'm guessing around 18*C
The answer would be ethane (C2H4)
The length of time required for half of the radioactive atoms in a sample to decay is its <span>half-life. The correct option among all the options that are given in the question is the first option or option "A". The other choices are incorrect and can be easily neglected. I hope that this is the answer that has come to your help.</span>