High School Chemistry

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Across
  1. 3. a group of atoms bonded together
  2. 4. long term, repeated exposure effects
  3. 7. a table that shows the elements, their atomic number, symbol, and average atomic mass
  4. 8. characteristic patterns of bright lines produced when atoms created in high-temperature flames or electrical discharges
  5. 10. the ability to dissolve in another substance
  6. 12. stored energy
  7. 14. a subatomic particle that has no charge and that is found in the nucleus of an atom
  8. 16. a group of parts that function together as a whole
  9. 17. the weighted average of the masses of the isotopes of an element
  10. 20. energy that is stored in chemical bonds between atoms
  11. 22. an element that is malleable and usually conducts heat and electricity well
  12. 24. electrons on the outermost energy level of an atom
  13. 27. each element emits specific colors of light that correspond to specific wavelengths
  14. 32. the tendency to erode or eat away
  15. 34. an element that is generally a poor conductor of heat and electricity
  16. 35. a horizontal row in the periodic table, numbered from 1 - 7
  17. 37. a state of matter that has a definite shape and a definite volume
  18. 38. an atomic model that describes the electrons as moving in circular orbits around the nucleus
  19. 39. an electrically charged atom that has gained or lost one or more electrons
  20. 40. the ability to do work or cause change
  21. 43. a cancer-causing substance
  22. 44. a discrete region of space within the electron cloud where electrons are most likely to be found
  23. 47. a three-dimensional representation of a molecule
  24. 48. the change in energy that occurs when an electron is added to a neutral atom
  25. 49. a predictable pattern in the periodic table
  26. 50. circular orbits around the nucleus
Down
  1. 1. a strong force of attraction that holds two atoms together
  2. 2. the energy needed to remove an electron from an atom or ion
  3. 3. anything that has mass and takes up space
  4. 5. A one or two letter representation of an element
  5. 6. pertaining to density
  6. 9. a unit of energy
  7. 11. the number of protons in the nucleus of an atom
  8. 13. an area around the nucleus where an electron can be found
  9. 15. the distance from the nucleus to the outermost edge of the electron cloud
  10. 17. smallest unit of an element
  11. 18. vertical column in the periodic table
  12. 19. an atom with the same number of protons and a different number of neutrons from other atoms of the same element
  13. 21. a subatomic particle that has a positive charge and that is found in the nucleus of an atom
  14. 23. The total energy of motion in the particles of a substance
  15. 25. a state of matter with no definite shape or volume
  16. 26. the positively charged, dense central core of an atom
  17. 28. a state of matter that has no definite shape but has a definite volume
  18. 29. adverse effects occur within a short period after exposure to a poisonous substance
  19. 30. center of an atom
  20. 31. the energy of motion
  21. 33. lowest temperate at which materials combust
  22. 36. safety data sheet
  23. 40. the region occupied by fast-moving electrons that surrounds the nucleus of an atom
  24. 41. a chemical or physical agent that interacts with DNA and causes a mutation
  25. 42. a metric unit of length equal to one trillionth of a meter
  26. 45. a subatomic particle that has a negative charge
  27. 46. a substance that causes malformation of an embryo