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18 Cards in this Set

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  • Back
chemical bond
a mutual electrical attraction between nuclei and valence electrons of different atoms that binds the atoms together
ionic bonding
chemical bonding that results from the electrical attraction between cations and anions
covalent bonding
the sharing of electron pairs between two atoms
non polar covalent bond
a covalent bond where the bonding electrons are shared equally by the bonded atoms; balanced distribution of electrical charge
polar
uneven distribution of charge
polar covalent bond
a covalent bond where the bonded atoms have an unequal attractin for the shared electrons
moleclue
a neutral group of covalently bonded atoms
molecular compound
chemical compound whose simplest units are molecules
chemical formula
indicates the relative numbers of atoms of each kind in a chemical compound by using atomic symbols and numerical subscripts
molecular formula
shows the types and nmbers of atoms combined in a single molecule of a molecular coumpound
bond energy
energy required to break a chemical bond and form neutral isolated atoms
ionic coumpound
pos and neg ions that are combined so that the numbers of pos and neg charges are equal
polyatomic ion
group of covalently bonded atoms
molecular polarity
theuneven distribution of molecular chage
dipole
equal but opposite charges separated by a short distance
polar bonds
difference in EN
non polar
no unshared pairs of electrons all outer atoms have to be the same
formula unit
cross and put into subscripts to neutralize charge between ions