Unit 1&2 vocab

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Across
  1. 5. The fixed energies an electron can have in an atom
  2. 6. A form of energy that can be transfered between objects
  3. 10. The central part of an atom containing protons and neutrons
  4. 11. The process of a substance changing from one state to another
  5. 14. The smallest unit of a chemical element
  6. 15. A form of energy that exhibits wavelike behavior as it travels through space
  7. 16. Everything outside of the system being studied
  8. 17. A measure of how hot or cold something is
  9. 19. The electrons in the outermost shell of an atom that are involved in chemical bonding
  10. 20. Neutral subatomic particles locatedin the nucleus
  11. 22. A reaction that absorbes heat
  12. 23. A measure of the disorder or randomness in a system
  13. 24. A pure substance consisting of only one type of atom
Down
  1. 1. The distance between successive peaks of a wave
  2. 2. Positevly charged subatomic particles located in the nucleus of an atom
  3. 3. The movement of heat from one substance to another
  4. 4. A tabular arrangement of the chemical elements, organized by atomic number
  5. 7. The energy of moving particles in a substance, related to temperature
  6. 8. The part of the universe being studied in a chemical reaction
  7. 9. A fundamental property of electrons that describes their intrinsic angular momentum
  8. 12. The process of measuring heat changes in a chemical reaction
  9. 13. A unit of energy used to measure heat
  10. 18. The total heat content of a system
  11. 21. The number of protons in the nucleus of an atom, which determines the element's identity