Across
- 2. the infection that is in the new right now
- 4. one use of alpha radiation in the home
- 5. the biggest animal that lives on the earth
- 6. the apple product that apparently bends
- 8. radiation made of 2 protons and 2 neutrons
- 9. the most famous scientist ever
- 11. if an element has a different mass number it is a ....
- 12. smelly food that is made out of cheese
Down
- 1. the radiation that can only be stopped by lead
- 3. units of radioactive decay
- 7. how long it takes for the count rate to decrease by half
- 10. where the protons and neutrons are