periodic table

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Across
  1. 1. when DOWN the group of periodic table, tendency to attract bonding electron _______
  2. 2. when ACROSS the periodic table, nucleus attraction towards valence electron is _______
  3. 3. when ACROSS the periodic table, effective nuclear charge _______
Down
  1. 1. when DOWN the group of the periodic table, electronegativity _______
  2. 2. when ACROSS the periodic table, atomic radius become _________