Atoms and Bonds

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Across
  1. 4. negative charged subatomic particle
  2. 5. the basic unit of a chemical element
  3. 6. what it called when two-atom share electrons
  4. 8. positive charged subatomic particle
  5. 9. what it called when one atom takes an electron or electrons for another
Down
  1. 1. the letter or letters that present the element
  2. 2. electrons in the out shell are called
  3. 3. the number of orbitals
  4. 5. the number above the atomic symbol on the periodic table number of protons
  5. 7. the number below the atomic symbol on the periodic table protons+nutrons