Benchmark 2 Vocab Review - Chemistry

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Across
  1. 1. a form of matter that has its own volume and takes the shape of its container
  2. 3. a subatomic particle carrying a positive charge of 1+
  3. 5. a form of matter that has its own volume and shape
  4. 8. ______ number, high-energy radiation that possesses no mass
  5. 10. a subatomic particle with a mass nearly equal to that of a proton, but that has no electrical charge
  6. 11. __________ mixture, a mixture with distinct components, chocolate chip cookies for example
  7. 14. tiny, dense, centrally located region within the atom that contains all of an atom’s positive charge and virtually all of its mass
  8. 15. ____ number, the sum of the number of protons and neutrons in the nucleus
  9. 17. ____ particle, a fast moving electron with a 1− charge
  10. 18. atoms with the same number of protons but different numbers of neutrons
  11. 19. ______mass, the weighted average of mass of the isotopes of an element
  12. 20. a form of matter that fills the volume and shape of its container
Down
  1. 2. a ratio that compares the mass of an object to its volume
  2. 4. a pure substance that cannot be separated into simpler substances
  3. 6. how close a measured value is to an accepted value
  4. 7. __________ mixture, a solution, air for example
  5. 9. how close a series of measurements are to one another
  6. 12. negatively charged particles that are part of all forms of matter
  7. 13. _____ ray, high-energy radiation that possesses no mass and no charge
  8. 16. a combination of two or more elements that are chemically combined
  9. 19. _____ particle, a particle with two protons and two neutrons with a 2+ charge