Periodic Trends

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9 Terms

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atomic radius

the radius of the atom → from the center of an atom to its outer orbital

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AR directions

down and left ↓←

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ionization energy

the amount of energy required to remove the valence electron(s)

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IE directions

up and right ↑→

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what is shielding?

When interior electrons (by getting in the way) decrease the attractive force between the nucleus and the valence electrons

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electron affinity

the amount of energy released when an electron is added to an atom

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why is energy released in Eₐ?

due to an increase in stability of the atom

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Eₐ directions

↑→

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electronegativity

the measure of the tendency of an atom to attract a pair of electrons