Atoms, Periodic Table and Bonding

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Across
  1. 5. Up and down columns on the periodic table.
  2. 6. Group number that have all of their energy shell filled.
  3. 10. Covalent bonding involves atoms _______ electrons.
  4. 12. To make an atom neutral it must have equal numbers of protons and ________.
  5. 13. Top number in the square that reveals number of protons an atom has.
  6. 15. This bottom number in the periodic square.
  7. 16. Side of periodic table where most nonmetals are found.
  8. 17. The charge of an electron.
  9. 18. It is the number of _________ an atom has that the periodic table is arranged by.
Down
  1. 1. Example of an Ionic compound (2 words).
  2. 2. Number of energy shells an Arsenic (As) atom has.
  3. 3. The left to right rows on a periodic table.
  4. 4. Most of the periodic table are these elements.
  5. 7. The group number tells you how many dots to put on this "diagram".
  6. 8. Ductile, malleable and luster are associated with ______ bonding.
  7. 9. Charge of ion if it loses valence electrons.
  8. 11. The nucleus of the atom contains the protons and these particles.
  9. 14. The "father of the periodic table" Dmitri _______.