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22 Cards in this Set
- Front
- Back
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Covalent Bonds
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Bonds that share electrons. Compounds with covalent bonds are called molecules
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Polar Covalent
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Electrons are shared unequally. One atom pulls the electrons closer than the other
0.4-1.7 |
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Nonpolar Covalent
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Electrons are shared equally between bonded atoms
0-0.4 |
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Diatomic Elements
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Bromine, Iodine, Nitrogen, Chlorine, Hydrogen, Oxygen, and Florine
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Metallic Bond
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form between atoms of same atomic element
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Metallic Bond
Outer shell electrons of metals |
are easily lost when they contact other atoms
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Metallic Bond
These "free" electrons form |
a cloud of - charge around the positive ions of the metal. The attraction between these charges is responsible for the metallic bond and gives metals their properties.
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The properties of metals are
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Malleability-bend and flex
Luster-shininess Conductivity-electricity |
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Intermolecular forces are also called
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Van der Waals Forces
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Inter- means
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between molecules, not within a molecule
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Intermolecular forces help determine the
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phase of the substance(solid, iquid, gas)
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The stronger the intermolecular forces...
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the higher the melting and boiling points
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Dipole-Dipole Attractions are only displayed in this type of molecule
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Polar
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Dipoles are...
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charged portions of a molecule
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Dipole-Dipole attractions are attractions between
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oppositely charged dipoles of neighboring polar molecules
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Hydrogen Bonding is the...
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strongest of the intermoleclar forces
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Hydrogen bonding is formed between molecules with a hydrogen atom....
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bound to a F, O, or N atom
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Hydrogen atom is almost completely...
This results in... |
stripped of its only electron. This results in a positive charge that attracts to the unpaired electrons of F, O, or N
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London Dispersion Forces are...
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the weakest of the intermolecular forces
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The London Dispersion Force it the attractive force of...
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one nucleus(positive) for a neighboring electron cloud(negative)
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In reference to the London Dispersion Force, the larger the atom...
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the greater the attraction
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Ionic Bonds
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-Transfer of electrons
-strong bond -usually forms a crystal solid -the charges on the ions hld the compound together in a 3D lattice 1.7 or < |
