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z chapter 5&6

Z chapter 5&6 chemistry

molecules are all nonmetals
holds molecules together the covalent bond
covalent bond extra force of attraction that results from walence e- being shared between 2 nuclei
bonding forces always produce energy
unbonding forces always requires energy
covalent bonds have lower melting points, not usually solids, dont conduct electricity, called nolecules, non metals
ionic bond atractions between ions
ion any atom or group of atoms that carry a charge
polar positive and negative
covalent bond being shared equally
polar covalent bond electrons shared unequally
2metals that r the same covalent
2 non metals that r different polar covalent
metal and nonmetal ionic bond
vserp valence shell electron pair repulsion theory
vserp concept walence electrons in a molecule repel one another
bond angle 2 electron groups 180
bond angle 3 electron groups 120
bond angle 4 electron groups 109.5
bent pair a loan pair of electron
bent angle means subtracting 2 degrees
vectors same direction add
vectors opposite direction subtract
Created by: k2berliner