13 nuclear physics questions

1. The splitting of a large nucleus into two smaller nuclei upon absorbing a neutron is a) nuclear fission

2. How tightly the nucleons in a nucleus are bound together is indicated by the nucleus’s b) mass number

3. The mass of an atom of carbon-12 (Z=6) is less than the mass of 6 protons and 6 neutrons because of e) binding energy

4. The time interval during which a nucleus has a 50% probability of decaying is its a) half life

5. When a nucleus in an excited state decays to the ground state, the particle emitted is a(n) c) gamma ray

6. When a neutron decays to a proton, a particle emitted is a(n) b) beta particle

7. When radium 223 (Z=88) decays to radon 219 (Z=86), the other particle emitted is a(n) a) alpha particle (2down, 4up, alpha)

8. A magnetic field will deflect a) alpha and beta particles  (all charged particles)

9. What does the 235 represent in uranium-235? a) the mass number (mass of neutrons + mass of protons)

10. The expression(s) indicating the mass number of a nucleus is d) Z + N (protons Z+ neutrons N)

11. The expression(s) indicating the number of protons in a nucleus is c) Z (number of electrons = number of protons = Z)

12. How do isotopes of a given element differ? a) They have different mass numbers (Z is the same but A is different)

13. The number of protons in a nucleus is the c) atomic number (or the order number in the periodic system Z)