Chemistry Vocab

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Across
  1. 1. form of an element with a different mass number
  2. 4. mixture in which particles cannot be seen and are evenly distributed
  3. 5. positively charged subatomic particle
  4. 8. these metals are found in the center of the periodic table
  5. 10. mixture in which particles are distinct and can be seen
  6. 11. isotope that is at the end of the decay process
  7. 14. these nonmetals are found in group 17
  8. 15. the weighted average mass of all the isotopes for an element
  9. 19. neutral subatomic particle
  10. 21. the number of protons in an atom; identifies an element
  11. 26. process that occurs when a nucleus decays and emits matter and energy
  12. 27. in nuclear format, is found on the top left
  13. 29. transfer of energy by electromagnetic waves
  14. 30. the mass of one proton or neutron is 1 ________
  15. 31. electrons on the outermost energy level
  16. 37. these metals are found in group 2
  17. 38. in nuclear format, is found on the right
  18. 39. the law of _____________ of mass states that matter cannot be created or destroyed, only recycled
  19. 40. bond formed between two charged particles that give up/gain e-
  20. 41. combining of nuclei to form a new nucleus and energy
Down
  1. 2. these large bodies of gas in the universe use fusion to keep burning
  2. 3. force exerted by objects with charges
  3. 6. type of radiation that releases a helium atom
  4. 7. isotope that is at the beginning of the decay process
  5. 9. bond formed between atoms sharing electrons
  6. 12. a series of repeated reactions caused by the release of particles or energy from the reaction before
  7. 13. the amount of time it takes for an amount of isotope to decay by half
  8. 16. charged atom caused by unequal amounts of protons and neutrons
  9. 17. force that causes protons and neutrons to be attracted to one another
  10. 18. these metals are found in group 1
  11. 20. type of radiation that releases an electron
  12. 22. protons + neutrons
  13. 23. one of these is equal to 6.02 x 10^23 particles
  14. 24. type of radiation that releases energy only
  15. 25. the splitting of atoms to create energy
  16. 28. letter(s) that represent an element
  17. 32. these nonmetals are found in group 18
  18. 33. negatively charged subatomic particle
  19. 34. this element has an atomic mass of 12.011
  20. 35. in nuclear format, is found on the bottom left
  21. 36. substance in which atoms of 2 or more elements are chemically combined