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Chemistry - Periodic Trends and IMF Flashcards

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640574883F2nonpolar and nonpolar covelant
640574884trend in Period 3 with increasing atomic numberincreasing electronegativity
640574885Na2Oionic - high melting point
640574886more polarfarther away from each other on periodic table
640574887longer carbon chainhigher boiling point
640574888polar molecule soluble in...polar solvent
640574889Group 2 elements lose electrons and...radius decreases because greater proton forces pull them in
640574890Water can form more h-bonds compared to...ammonia
640574891lone pairs of electronsalways polar
640574892no lone pairs and atoms on outside are the samenon polar
640574893no lone pairs and atoms on inside are differentpolar
6405748943 atom polar moleculebent
6405748954 atom polar moleculepyramidal
6405748963 atoms without lone pairslinear
6405748974 atoms without lone pairstrigonal planar
6405748985 atoms without lone pairstetrahedral
640574899more than .5 electronegativitypolar
640574900less than .5 electronegativitynon polar
640574901LDFattraction between molecules with no dipole moment or between noble gases VERY WEAK STRENGTH ex, CO2
640574902dipole-dipoleattraction between one dipole molecule and another dipole molecule WEAK STRENGTH ex. SO2
640574903dipole momentwhen one side of the molecule has a partial positive charge and the other side of the molecule has a partial negative charge
640574904ion-dipoleattraction that exists between an ion and a dipole molecule WEAK STRENGTH ex. NaCl in water
640574905hydrogen bondsattraction between (highly polar) molecules of F,O,N and hydrogen MODERATE STRENGTH ex. H2O
640574906surface tensionattraction of molecules to each other, creating a "film" the can support different things
640574907water polaritywill dissolve polar or ionic substances
640574908de-ionizedwill not conduct electricity
640574909vapor pressureliquid placed in closed container and the rate of condensation and evaporation are at an equilibrium
640574910volatileliquids with high vapor pressures (evaporate easily)
640574911strong intermolecular forcelow vapor pressure
640574912low intermolecular forcehigh vapor pressure
640574913boilingwhen bubbles form in the interior of the liquid, bubble form equal to atmospheric pressure, boiling occurs when VAPOR PRESSURE is equal to ATMOSPHERIC PRESSURE
640574914lower atmospheric pressurelower boiling point and vice versa

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