Physical Science Unit 11

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Across
  1. 2. electrons that are involved in bond formation, usually those in an atom’s outer shell
  2. 4. The amount of solute that will dissolve in a specified volume or mass of solvent (at a given temperature) to produce a saturated solution
  3. 7. The elements in Group 1A of the periodic table, except for hydrogen
  4. 8. A pure substance composed of two or more elements chemically bonded in a definite, fixed ratio by mass
  5. 10. A type of matter composed of varying proportions of two or more substances that are just physically mixed, not chemically bonded
  6. 11. The vertical columns in the periodic table
  7. 13. The elements of Group 8A of the periodic table
  8. 18. The elements in Group 2A of the periodic table
  9. 19. An atom’s outer shell, which contains the valence electrons
  10. 21. The horizontal rows in the periodic table, organizing the elements on the basis of atomic numbers
  11. 23. The lanthanides and actinides, the two rows at the bottom of the periodic table, make up the inner transition elements
  12. 24. A mixture that is uniform throughout, also called a homogeneous mixture
  13. 25. The elements in Group 7A of the periodic table
Down
  1. 1. Those in Groups 1A through 8A in the periodic table
  2. 3. The amount of energy it takes to remove an electron from an atom
  3. 5. An atom, or chemical combination of atoms, that has a net electric charge because of a gain or loss of electrons
  4. 6. An electrically neutral particle composed of two or more atoms chemically bonded
  5. 9. An element whose atoms tend to gain (or share) electrons during chemical reactions
  6. 12. An element whose atoms tend to lose valence electrons during chemical reactions
  7. 14. The study of the composition and structure of matter (anything that has mass) and the chemical reactions by which substances are changed into other substances
  8. 15. A pure substance in which all the atoms have the same number of protons; that is, they have the same atomic number
  9. 16. The properties of elements are periodic functions of their atomic numbers
  10. 17. The order of electrons in the energy levels of their atoms
  11. 20. The B group of elements in the periodic table
  12. 22. Two or more forms of the same element that have different bonding structures in the same physical phase.