1. How do nuclear reactions differ from ordinary chemical reactions? 2. is the difference between radioactive decay and nuclear transmutation? 3. The table below is a summary of different modes of nuclear decay. Fill in the changes in atomic number ( ), number of neutrons ( ), and mass number ( ) in each case. Use “+” sign for increase, “–“sign for decrease, and “0” for no change. Provide the symbol for each elementary particle involved in the decay process. 4. Complete the following nuclear equations, and identify X in each case.