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19 Cards in this Set
- Front
- Back
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chemical Bond
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A force of attraction that hold atoms together
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Valence Electrons
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Electrons in the outermost level
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Ionic Bonds
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force of attraction between ions
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Ion
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Charged atom
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+ ion
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lost electrons
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- ion
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gained electrons
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metal atoms
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lose electrons to become + ions
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nonmetal atoms
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gain electrons to become - ions
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Ionic compounds
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neutral because ions cancel out
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Crystal lattice
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repeating 3-dimentional pattern
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Properties of Ionic Compounds
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1. crystal lattice
2. high melting point 3. high boiling pt 4. brittle solid at room temp. |
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What is a Covalent Bond?
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A bond between atoms where electrons are SHARED.
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Properties of Covalent Compunds.
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1. Amorphous (no form)
2. low boiling point 3. low melting point |
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Molecule
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neutral group of atoms held together by covalent bonds.
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What types of atoms are in ionic bonds?
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metal and nonmetal
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What types of atoms are in covalent bonds?
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2 nonmetals
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What types of atoms are in metallic bonds?
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metal atoms
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What is a Metallic bond?
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attraction between positively charged metal ions and electrons
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Properties of Metallic Compunds.
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1. conductivity (electricity)
2. ductile 3. malleable |
