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C2.1 Glossary
Structure and Bonding Glossary
Term | Definition |
---|---|
Compound | A substance made when two or more elements are chemically bonded together. |
Covalent Bond | The attraction between two atoms that share one, or more pairs of electrons. |
Covalent Bonding | The attraction between two atoms that share one, or more pairs of electrons. |
Delocalised Electron | bonding electron that is no longer associated with any one particular atom. |
Dot and Cross Diagram | a drawing to show the arrangement of the outermost electrons only of the atoms or ions in substance. |
Double Bond | a covalent bond formed by the sharing of two pairs of electrons. |
Giant Covalent Structure | a huge 3D network of covalently bonded atoms. (e.g. the giant lattice of carbon atoms in diamond or graphite. |
Giant Lattice | a huge 3D network of atoms or ions (e.g. the giant ionic lattice in sodium chloride). |
Ion | a charged particle produced by the loss or gain of electrons. |
Ionic Bond | the electrostatic force of attraction between positively and negatively charged ions. |
Ionic Bonding | the electrostatic force of attraction between positively and negatively charged ions. |
Mixture | when some elements or compounds are mixed together and intermingle but do not react together ( i.e. no new substances are made). A mixture is NOT a pure substance. |