Physical Science Chapter 4 Vocabulary

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Across
  1. 2. characteristics between those of metals and nonmetals
  2. 4. found to the left of the heavy stairstep line on the periodic table
  3. 5. set of elements in the same column on the periodic table, and have similarities
  4. 6. radius-the distance from the center of an atom's nucleus to the electrons in its outermost energy level
  5. 10. earth metal-often added to alloys, homogeneous mixtures that contain at least one metal, to make them stronger
  6. 11. tendency to gain this electron makes them highly reactive
  7. 13. measure of an element's ability to attract and hold electrons when bonded to other atoms
  8. 14. electron-the electrons in the outermost energy level of a neutral atom
  9. 17. law-states that the properties of the elements vary in a periodic way with their atomic numbers
  10. 18. set of elements in the same column on the periodic table, and have similar physical and chemical properties
Down
  1. 1. group-contain metals, nonmetals, and metalloids, and so they are called mixed groups
  2. 3. metal-most of these elements have one or two valence electrons
  3. 6. metal-the most reactive of all the metals and always found as parts of compounds
  4. 7. transition metals- get their name from their proper placement-between the transition metals in the periodic table
  5. 8. gas-very useful for creating a nonreactive environment
  6. 9. have four or more valence electrons and do not exhibit the general properties of metals
  7. 12. table-a table of the chemical elements arranged in a way that displays their periodic properties in relationship to their atomic number
  8. 15. dot notation-consists of the element's chemical symbol surrounded by the atom's valence electrons
  9. 16. row on the periodic table