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10 Cards in this Set
- Front
- Back
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Atomic radius |
A measure of the size of an atom. The distance between the nucleus and the outer valance electrons of a neutral atom. |
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Bond dipole |
Occurs when electrons are shared unequally between two atoms of differing electronegativity joined by a covalent bond. |
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Electronegativity |
The relative ability of an atom within a covalent bond to attract the shared electrons |
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Hydrogen bond |
Intermolecular attraction between molecules that occurs when a hydrogen atom is bonded to a highly electronegative atom such as N, O or F. |
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Ionic radius |
A measure of the size of an ion. The distance between the nucleus and the outer/valance electrons of a monatomic ion. |
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Ionisation energy |
The minimum amount of energy required to remove the outermost electron from one mile of gaseous atoms. |
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Molecular dipole |
Charge separation across a molecule caused by bond dipoles not cancelling due to asymmetry of the molecule. |
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Permanent dipole attraction |
Intermolecular attraction between polar molecules, created by the electrostatic attraction between molecular dipoles of polar molecules. |
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Polar covalent bind |
A type of covalent bond where a pair of electrons is unequally shared between two atoms because of their differing electronegativity values |
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Temporary dipole /induced dipole attraction |
A type of intermolecular attraction between molecules, created by the temporary uneven distribution of negative charge in the molecule |
