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14 Cards in this Set
- Front
- Back
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Chemical Bond |
The force that holds two atoms together; may form by the attraction of a positive ion for a negative ion or by sharing electrons. |
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Ionic Bond |
The electrostatic force that holds oppositely charged particles together in an ionic compound. |
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Anion |
An ion that has a negative charge. |
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Oxidation |
The loss of electrons from the atoms of a substance; increases an atom's oxidation number. |
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Lewis Structure |
A model uses electron-dot structures to show how electrons are arranged in molecules. Pairs of dots or lines represent bonding pairs. |
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Cation |
An ion that has a positive charge. |
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Covalent Bond |
A chemical bond that results from the sharing of valence electrons. |
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Formula Unit |
The simplest ratio of ions represented in an ionic compound. |
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Molecule |
Forms when two or more atoms covalently bond and is lower in potential energy than its constituent atoms. |
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Structural Formula |
A molecular model that uses symbols and bonds to show relative positions of atoms; can be predicted for many molecules by drawing the Lewis Structure. |
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Lattice Energy |
The energy required to separate one mole of the ions of an ionic compound, which is directly related to the size of the ions bonded and is also affected by the change of the ions. |
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Polyatomic Ion |
An ion made up of two or more atoms bonded together that acts as a single unit with a net charge. |
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Polar Covalent Bond |
A type of bond that forms when electrons are not shared equally. |
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Crystal Lattice |
A three-dimensional geometric arrangement of particles in which each positive is surrounded by negative ions and each negative ion is surrounded by positive ions; vary in shape due to sizes and relative numbers of the ions bonded. |
