Nuclear Reactions Practice 1. What’s the mass number of this isotope? 25 38 13 12Question 1 of 10 2. What’s the symbol for an isotope with 20 protons and 30 neutrons? Question 2 of 10 3. How many neutrons does mercury-200 have in its nucleus? 280 80 200 120Question 3 of 10 4. Which choice balances the nuclear reaction correctly? Question 4 of 10 5. What nuclear particle balances this reaction correctly? neutron alpha gamma betaQuestion 5 of 10 6. Which choice balances the nuclear reaction correctly? Question 6 of 10 7. Which choice balances the nuclear reaction correctly? Question 7 of 10 8. What nuclear particle balances this reaction correctly? gamma neutron alpha betaQuestion 8 of 10 9. Which choice balances the nuclear reaction correctly? Question 9 of 10 10. Which choice balances the nuclear reaction correctly? Question 10 of 10 Loading…