Across
- 1. Weakest wavelength
- 3. SO4 2-
- 5. an electron to jump to a higher energy
- 11. electron drops back to its original energy level
- 13. change to the chemical composition
- 16. unstable isotope that decays
- 17. Gold foil experiment
- 18. splitting large nuclei
- 20. PO4 3-
- 21. A Negatively Charged Ion
- 22. Subatomic Particle
- 24. Planetary model, orbitals
- 26. can be measured or observed
- 29. OH-
- 30. nuclei fuse to make a bigger nucleus
- 36. A hypothesis that has been tested with a significant amount of data
- 37. A positively charged ion
- 38. unevenly mixed
- 39. lists information relating to safety
- 40. Quantum Mechanics, electron cloud
Down
- 2. gives off energy changes element
- 4. Identification of hazards material
- 5. depends on the amount of matter
- 6. mixed and separated physically
- 7. emission of gamma rays
- 8. electron kicked out of atom,
- 9. shows frequencies or wavelengths
- 10. Depends on the type of matter
- 12. law of conservation of mass
- 14. all parts the same: mixed evenly
- 15. Radioactive isotope emits an A particle
- 19. A charged atom
- 23. Strongest wavelength
- 25. Form of matter that has a constant composition and properties
- 27. ability to dissolve in water
- 28. NH4+
- 31. An educated guess
- 32. An atom with the same number of protons and a different number of neutrons
- 33. amount of energy
- 34. charged group of covalently bonded atoms
- 35. causes damage to metal or skin