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chemistry ch624 cards
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electrical attraction between nuclei and valence of electrons
bond with an electrical attraction between opposing charged particles
sharing of electrons
attraction between sea of electrins and metal atoms
never purely ionic never purely covalent both degree depends on diff electrical activity
neutral group of atoms tht are covalenty bondes
chemical compoud with simplest unit is molecules
number of atoms of each kind in a chemical compound by using subscripts and symbols
shows the # of atoms in a molecular compound
simplest collection of atoms which form ionic compoud
average distance between 2points @ minimum pe/ energy reqyired to break down bond in order to form isolated atoms
hydrogen, BF3 yransitional metals. boron. oxygen. berrylium. sulphur
amount of energy tht is given out when one mole of ionic compound is for ed from its gaseous consistent ion.
governed by lattice energy
conduct electric current only molten and solution state. high mp and bp. hard compared to molecular compounds
high thermal and electrical conductivity. shiny. hard. malleable. ductile.
lattice, bond dissociation, heat of vaporization
repulsion between sets of valence electrons surrounding central atom causes sets to be oriented as far apart as possible to minimize repulsion
valence. shell. electron. pair. repulsion.
mixing of orbitals from same atoms and about same energy to produce orbitals of same energy
short range forces between molecules
dipole-dipole: attratiin between polar molecules hydrogen bonding: attration between hydrogenatum bonded to eitrer nitrogen, oxy, flourine
london dispersion. dipole dipole. hydrogen. covalent. ionic
forces between nonpolar or between atoms
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