chap 5 Flashcards
explain VSEPR
valence shell electron pair repulsion theory determines the shape of a molecule through its repulsion via electron pairs.
electronegativity
electronegativity‘s is a measure of how greedy an atom is to gain or attract electrons to itself atoms with most electronegativity attracts electrons more strongly
polarity
partly positive and partly negative electrons
polar covalent bond
when 2 atoms with relatively large difference in electronegativit, which are bonded tog.
non polarity
same or similar electronegativity atoms which are bonded together
permanent dipole moment
some nonpolar have no permanent dipole moment but polos like HCL have a permanent dipole moment. due to its polarity
how many vsepr disgrams r there and name them
linear, bent shape or the shape, trigonal pyramidal, Tetrahedral
difference between intra and intermolecular forces
inter is the forces that attraction that happens between molecules snd intra is ehen it happens witin molecules so e.g covalent bonds, ionic bonds etc.
instantaneous dipole momen is when…
electrons move around its orbital.
dispersion force
when the same or similar instantaneous dipole moment atracts with each other
orbitals
where an electron is most likely to be found but doesnt represent the exact location
strength dispersion
the more electron it has the more chance of having a dipole to dipole connection
weakness dispersion
electrons are constantly shifting
why some bonds cant be polar
due to its molecular shape
