Across
- 2. - measured relationship between the pressure and volume of air.
- 3. - extensive tabulation of the elements
- 5. - atoms with the same atomic number but different mass numbers
- 6. - emission of particles and electromagnetic radiation
- 8. - occurs when nuclei are bombarded with neutrons, protons, or other nuclei
- 9. - center of the atom
Down
- 1. - neutral subatomic particles
- 2. bang - a progression in the development of the universe from a radiation-dominated stage to a matter-dominated universe
- 4. - negatively charged subatomic particles
- 7. - positively charged particles