Periodic table crossword

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Across
  1. 2. Highest Electron Affinity
  2. 5. Factors affecting electronegativity
  3. 6. The tendency of an atom to attract electrons to itself when combined in a
  4. 8. Zero Electron Affinity
  5. 9. Element from group 15 and period 3.
Down
  1. 1. Arranged the elements increasing order of their atomic weights into groups of three called triads.
  2. 3. Down the group atomic size
  3. 4. Highest ionization potential
  4. 7. the distance between the center of nucleus an atom and