Across
- 5. in atom which particle help to protect from the bombardeing
- 8. the quantum mechanical model of the atom was proposed by
- 10. which theory proposed graviton
Down
- 1. which experiment demonstrates the wave nature of the electron
- 2. the smallest possible size for anything in the universe
- 3. which effect describe the thermionic emission
- 4. the wavelength of the matter waves is independent of
- 6. the most abundant particle that have mass in the universe
- 7. an electron with positive charge is known as
- 9. particle that carry energy and force throughout the universe