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| formula unit |
simplest ratio of ions |
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| crystal lattice |
3 Dimensional network of ions |
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| lewis structure |
picture of covalent bonds |
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| octet rule |
atoms in a compound obtain the electron configuration of a noble gas to gain stability |
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| molecular formula |
the trype and number of atoms in a molecule |
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| molecular compound |
compound made of molecules |
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| h2 N2 O2 F2 Cl2 Br2 I2 |
diatomic numbers |
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| diatomic molecules |
molecule with only 2 atoms |
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| molecule |
group of atoms held by covalent bond |
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| covalent bond |
sharing of electrons |
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| between metal and metal |
metallic bond |
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| .3-1.7 |
polar covalent |
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| less than .3 |
nonpolar covalent |
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| greater than 1.7 |
ionic bond |
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| electrons spend more time closer to the element w/ a _____ electronegativity |
higher |
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| the greather the difference in electronegativity the more ______ the bond |
ionic |
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| polar covalent |
unequal sharing of the electrons
one atom is stronger than the other |
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| nonpolar covalent |
equal sharing of electrons
atoms are close in strength |
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| covalent bond |
bond caused by sharing of electrons |
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| ionic bonds |
chemical bond between cation and anion caused by transfer of electrons |
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| why do chemical bonds occur |
the nucleus of one atom is attracted to the electrons of another |
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| chemical bond |
a link between atoms |
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