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29 Cards in this Set
- Front
- Back
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Covalent bond |
chemical bond that involves the sharing of electron pairs between atoms. |
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Octet rule |
elements gain or lose electrons to attain an electron configuration of 8 |
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Pure covalent bond |
little or no difference between the electronegativity of the atoms |
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Double bond |
where two pairs of electrons are shared between the atoms |
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Molecular Compounds |
Compound held together by covalent bonds |
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Intermolecular forces |
Forces which act between molecules |
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Alloy |
metal made by combining two or more metallic elements, |
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Lone pairs |
pair of valence electrons that are not shared with another atom |
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Polar molecule |
molecule containing polar bonds(uneven distribution of electrons) |
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Non polar molecule |
Molecule where electrons are evenly shared |
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Valence |
Outer shell |
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Zero sum rule |
Sum of pos charges must equal sum of negative charges |
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Binary compound |
Comound of 2 different elements |
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Tertiary compounds |
compound that contains three different elements |
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Ionic bond |
Bond formed.between metal and non metal |
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Electronegativity |
Ability of an atom to attract a bonding pair of electrons |
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Isoelectronic |
having the same numbers of electrons |
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Diatomic elements |
elements that form diatomic molecules by combining two of their atoms together. |
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Triple bond |
when two atoms are sharing three pairs of electrons. |
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Intramolecular forces |
Force that holds together atoms |
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Metallic bond |
bonding between molecules within metals |
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Polar covalent bond |
dl where a pair of electrons is unequally shared between two atoms. |
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Bonding pair |
Pair of electrons which creates a bond between atoms |
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Dipolar molecule |
Molecule having two such charges or poles |
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Polyatomic ion |
(ion) composed of two or more atoms covalently bonded |
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Stock system |
nomenclature and notation of indicating the oxidation state of the significant element in a compound or ion by means of a Roman numeral |
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Electron affinity |
Energy absorbed or released when adding an electron to a neutral atom |
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Ionization energy |
Amount of energy required to remove the outermost electron in an atom in the gaseous state |
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Electro negativity difference scale measures |
0-0.4 =slightly polar covalent 0.5-1.7=polar covalent 1.7-3.3= mostly Ionic |
