chapter 9 tanner pollard mr.b atomic structure

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Across
  1. 4. symbol an abbreviation for an element or atom
  2. 6. any vertical column in the periodic table also known as a family of elements
  3. 8. an extremely small negatively charged subatomic particle found in a cloud outside the atomic nucleus
  4. 10. an electrically neutral subatomic particle in the atomic nucleus
Down
  1. 1. any member of a set of atoms of the same element whose nuclei contain the same number of protons but different numbers of neutrons
  2. 2. any material that is made up of only one type of atom
  3. 3. any subatomic particle found in the atomic nucleus another name for either a proton or a neutron
  4. 5. table a chart in which all known elements are listed in order of atomic number
  5. 7. a positively charged subatomic particle in the atomic nucleus
  6. 9. a horizontal row in the periodic table