Exam 1 Review

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Across
  1. 3. When a mixture can not visibly be differentiated into different components
  2. 7. Type of formula, indicates how certain atoms are grouped together
  3. 9. experimental results in proximity to the desired value represents _____
  4. 11. Compounds of cations and anions, typically include a metal
  5. 13. multiple unique molecules physically combined, eg: chocolate chip cookies
  6. 15. Elements with similar chemical and physical properties in vertical columns
  7. 16. The simplest, whole-number atom ratio of atoms in a formula
  8. 17. When a mixture can visibly be differentiated into different components
  9. 18. Negatively charge ion
  10. 19. properties which require chemical changes to be tested, eg: flammability
  11. 21. Elements in the leftmost column, group 1A
  12. 23. The state something is in when dissolved in water
Down
  1. 1. pure samples containing one type of atom
  2. 2. Group 8A elements, named for their lack of reactivity
  3. 4. experimental results in proximity to each other represents ______
  4. 5. The mass in grams of one mole of any element or molecule
  5. 6. A horizontal row of the table
  6. 8. properties of molecules that do not depend on amount
  7. 10. two or more different elements chemically combined, eg: table salt
  8. 12. Compounds that consist of nonmetals bound to nonmetals
  9. 14. Group 7A elements, among the most reactive of all elements
  10. 20. Positively charged ion
  11. 22. atoms of group of atoms that bear a positive or negative charge