Across
- 1. number of waves that pass a fixed point
- 3. how long wave is
- 5. energy that travels at the speed on light
- 7. range of wavelengths emitted
- 10. light and radio waves
- 13. negatively charged ion
- 14. positively charged w 2 protons an 2 neutrons
- 17. energy level defined by quantum theory
- 19. arrangement of electrons in orbitals around an atomic nucleus
- 20. high speed, energy election or positron emitted by radioactive decay during the process of beta decay
- 21. electric charge bc loss or gain electrons
- 22. represent the valence electrons of atoms within a molecule, dots
Down
- 2. form of energy both electrical and magnetic waves, in packets of energy called photons.
- 4. single packet of energy or matter
- 6. the shell or orbital
- 8. radiation of particles
- 9. shortest wavelength an heighets energy
- 11. tendency of atoms to prefer to have eight electrons in the valence shell
- 12. represents radio decay, nuclear fission, nuclear, fusion
- 15. ion w a positive charge
- 16. lowest energy state of an atom
- 18. the electrons in the outermost shell, or energy level, of an atom