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Students are asked to use the periodic table to predict trends in electronegativity, ionization energy, and atomic radius. Look at the image below. What trend would be placed in arrow 1, arrow 2, arrow 3 and arrow 4.

User Matt Esch
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Arrow 1: Increasing electronegativity from left to right across a period.
Arrow 2: Increasing ionization energy from bottom to top within a group.
Arrow 3: Decreasing atomic radius from left to right across a period.
Arrow 4: Decreasing electronegativity from top to bottom within a group.
User Blastfurnace
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