science

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Across
  1. 4. the # of protons in a atom
  2. 6. a group of the periodic table
  3. 8. any various metallic metals
  4. 9. the amount of mass of chemical element expressed in atomic mass units
Down
  1. 1. a column in the periodic table of elements
  2. 2. a row of chemical elements
  3. 3. the property or power of conducting heat,electricity,electron, or conductor
  4. 5. the organized array of all the chemical elements in order of increasing atomic numbers
  5. 7. a substance having infinite activity energy for electric conductor
  6. 10. able to be hammered or pressed out of shape