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23 Cards in this Set
- Front
- Back
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Anion |
An atom or group of atoms that has gained one or more electrons and has a negative charge |
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Cation |
An atom or group of atoms that has lost one or more electrons and therefore has a positive charge |
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Bond angle |
The angle formed by three adjacent atoms in a molecule |
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Conductivity |
The ability of a substance to transmit electrical current or heat |
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Covalent Bond |
A strong chemical bond formed when a pair of electrons is shared between 2 atoms |
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Dipole |
Positive and negative charges across a covalent bond or a molecule caused by a difference in electronegativity between atoms |
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Electronegativity |
The measure of an atoms ability to attract electrons in a chemical bond |
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Electrostatic attraction |
The force that acts between particles with an opposite electrical charge |
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Endothermic |
Absorbs heat |
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Exothermic |
Releases heat |
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Insulator |
A substance that does conduct electricity |
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Ionic bond |
Chemical bond between positively charged cations and negatively charged anion |
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Ionic Lattice |
Ordered arrangement of ions in three dimensions |
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Lewis diagram |
Show the bonding between atoms in a molecule and any lone pairs of electrons that may exist around the atoms |
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Lone Pair |
Pair of valence electrons that aren't involved with bonding |
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Melting point |
The point at which a substance changes from a solid state to a liquid state |
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Molecular Shape |
The orientation in space of the atoms that make up a molecules |
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Molecule |
A group of atoms bonded together by covalent bond forming a discrete particle |
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Polar Covalent Bond |
Bond formed by the uneven sharing of valence electrons between atoms |
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Region of negative charge |
A region of space around an atom occupied by electrons |
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Soluble |
The property of a substance describing its ability to form solutions when mixed with a solvent |
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Thermochemical equation |
A chemical equation showing a defined amount of energy being either absorbed or released |
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Valence electrons |
The outermost shell of electrons in an atom or ion |
