Across
- 2. fusion small nuclei combine to form one large nuclei
- 3. property is something that is measurable or observed
- 5. the same number of valence electrons
- 10. bonds between metals
- 16. two or more substances physically combined
- 17. energy energy it takes to remove an electron
- 18. radius size of atom bottom left
- 21. bond nonmetal and nonmetal
- 23. decay radioactive isotopes emit a ___particle
- 25. an idea that has evidence to support it
- 27. same element with different masses
- 31. unstable isotope
- 32. excitation electron jumps up a level
- 34. bond metal and nonmetal
- 36. an educated guess
- 37. charged particles
- 38. spectrum range of wavelengths of radiation
Down
- 1. how badly an atom wants bonding electron
- 4. structures show valence electron bonds
- 5. decay does NOT involve particles emission of ___ rays
- 6. if it can dissolve in water
- 7. NH4
- 8. relaxation jumps down a level
- 9. property physical property that depends on the amount (size, mass, and volume)
- 11. property reactivity or chemical composition
- 12. property physical property that does NOT depend on the amount
- 13. substance substance that can not be physically separated
- 14. fission large nuclei split to form small, stable nuclei
- 15. negatively charged ion
- 19. gives off energy
- 20. color of light
- 21. positively charged ion
- 22. breaks down
- 24. configuration location of an electron
- 26. mixture unevenly mixed
- 28. ion more than 2 elements
- 29. same number of energy levels
- 30. sheet with hazards and properties of a chemical
- 33. mixture evenly mixed
- 35. decay change element charge does NOT change mass