The problem statement, all variables and given/known data 1. Which of the following statements is / are not correct? (1) In fission, two large fragments of equal masses are produced from a nuclide. (2) Natually occurring elements perform fission spontaneously. (3) 2 H2O --> 2H2 + O2 involves nuclear fission. 2. Relevant equations / 3. The attempt at a solution 3. It's a MC question and the answer is D (1), (2) and (3) My question is: I don't understand the meaning of statement (2). Thus I 've got a wrong answer. Can anyone please kindly explain to me ?