Chemistry Chapter 1-6 Vocabulary

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Across
  1. 4. branch of chemistry that identifies the components & composition of materials
  2. 6. atoms of the same element that have different masses
  3. 9. number of particles in exactly one mole of a pure substance
  4. 12. calculated by looking at the accepted v. experimental values
  5. 14. number number of protons of each atom of that element
  6. 16. ratio of mass to volume
  7. 18. measure of the amount of matter
  8. 19. zeros at the end of a number and to the left of a printed decimal _______ significant
  9. 20. number of sig figs in 4078
Down
  1. 1. an electron occupies the lowest energy level that can receive it
  2. 2. noble gas with 36 electrons
  3. 3. amount of a substance that contains as many particles as there are atoms in exactly 12g of Carbon-12
  4. 4. 14 elements with atomic numbers 90-103
  5. 5. amount of space occupied by an object
  6. 7. a testable statement
  7. 8. branch of chemistry that studies this element containing compounds
  8. 10. smallest particle of an element that retains the chemical properties of that element
  9. 11. lowest energy state
  10. 13. type of properties that depend on the amount of matter that is present
  11. 15. any substance that has a definite composition
  12. 17. general term for a specific isotope of an element
  13. 18. mass mass of one mole of a pure substance