Across
- 4. this type of radiation has a positive charge, stopped easily, deflected by magnetic field, and consists of two protons and two neutrons
- 5. this type of radiation is natural and originates in Earth and space.
- 7. this type of atomic nuclei has an imbalance of neutrons and protons.
- 9. Results from radioactive decay, which is the process in which unstable atomic nuclei transform and emit radiation.
- 10. the minimum mass of fissionable material in a reactor or nuclear bomb that will sustain a chain reaction.
Down
- 1. The energy released is in the form of kinetic energy of fission fragments that fly apart from one another, with some energy given to ejected neutrons and the remainder given to gamma radiation.
- 2. rate of decay of a radioactive isotope.
- 3. two type high-energy particles and high frequency electromagnetic radiation.
- 6. this type of radiation has no charge, has high-frequency electromagnetic radiation, most penetrating, have no mass, are pure energy, unaffected by magnetic and electric field.
- 8. this type of radiation has a negative charge, is an ejected electron from a neutron, penetrates fairly deep into skin, deflected by magnetic field.