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28 Cards in this Set
- Front
- Back
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Metallic bonds are between |
metals
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Ionic bonds are between
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Metals and non-metals |
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Covalent bonds are between |
non-metals |
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Intermolecular forces are between |
Molecules |
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Description of metallic bonds |
valence electrons roam freely between many atoms creating a "sea of electrons" around the nuclei. |
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Description of ionic bonds |
transfer of electrons makes cat and an-ions that are attracted to each other |
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Description of covalent bonds |
Sharing of electrons to form molecules |
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Description of intermolecular forces |
hold covalently bonded molecules together, like water |
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Material formed by metallic bonds |
Solid metals and alloys |
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Material formed by ionic bonds |
crystals in ceramics and glass |
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Material formed by Covalent bonds |
liquids and gases |
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Material formed by intermolecular forces |
network solids |
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Three names of Crystal structures |
*Body-Centered Cubic *Face-Centered Cubic *Hexagonal Close-Packed |
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Whats an alloy |
mixtures composed of two or more elements |
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Why is salt conductive? |
When salt is melted, the orderly crystalline structure breaks down. If a voltage is applied across this molten mass, cations migrate freely to one electrode, and anions to another. Thus resulting in an electrical current. |
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What degree is a bent molecule? |
109.5 |
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What degree is a linear molecule? |
180 |
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What degree is a pyramidal molecule |
107 |
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What degree is a tetrahedral molecule? |
109.5 |
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What range of electronegativity difference results in a Nonpolar Covalent bond |
0.0-0.4 |
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What range of electronegativity difference results in aModerately polar covalent bond? |
0.4-1 |
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What range of electronegativity difference results in a Very polar covalent bond? |
1-2 |
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What range of electronegativity difference results in a ionic bond |
>2 |
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Whats an Isomer |
same formula; different structural properties |
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V.S.E.P.R Theory |
Valence Shell Electron Pair Repulsion Theory |
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-ane means |
Single Bonds |
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-ene means |
double bonds |
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-lyene means |
tripple bond |
