3.6-test1

3.6-test1 - Electronegativity Attraction of an atom for an...

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1 Lo EN = vacancies are far from nucleus Hi EN = vacancies are close to nucleus Section 3.5 E + + + + + + + Which vacancies are more attractive to an electron: green or pink? Because it’s as close to the nucleus as an e- can get, at 2 e’s per orbital. Electronegativity Attraction of an atom for an “incoming e - A + e - A - Electronegativity Attraction of an atom for an “incoming e - + e - A - E 2 s 2 p B N O F Ne C Be Li Which element in the 2nd period has the highest EN? Section 3.5 Valence Orbital Energies and Electronegativity E Li Be B C N O F Na Mg Al Si P S Cl K Ca Ga Ge As Se Br H + + + + + + + + + + + + + + Furthest vacancy Lo EN Closest vacancy Hi EN Summary Electronegativity Electronegativity Trends EN: ability of an atom in a molecule to attract bonding electrons. Hi EN Lo EN Metals Non- metals Exclude Noble Gases F O N Cl Section 3.5 Pick the largest and smallest atoms. 1. Large Cs, small O 2. Large Br, small Ne 3. Large Cs, small Ne 4. Large Na, small Br
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2 Pick the atoms with the highest 1 st ionization energy and lowest 1 st ionization energy.
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3.6-test1 - Electronegativity Attraction of an atom for an...

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