Atomic bonding and structure key words - year 9 chemistry
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12 Terms
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Conductor
A substance that carries a charge
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Covalent bond
A pair of shared electrons between two non metals
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Electrostatic attraction
Strong forces of attraction between oppositely charged ions
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Ion
A charged atom that has lost or gained electrons
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Ionic bond
When a metal atom loses electrons to form a positively charged ion, and these electrons are transferred to a non metal
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Ionic compound
A chemical compound formed from ionic atoms
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Intermolecular forces
The forces which exist between molecules
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Lattice
A repeating regular arrangement of atoms, ions or molecules
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Metallic bond
The bond between positive metal ions and negative delocalized electrons in metals
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Atom
The smallest part of an element that can exist
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Atomic number
The number of protons in an element
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Mass number
The number of protons and neutrons in an element