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Science vocab 6
Term | Definition |
---|---|
Electron Dot Diagram | a model of an atom in which each dot represents a valence electron. |
Ion | an atom or group of atoms that has a positive or negative charge. |
Anion | an ion with a negative charge. |
Cation | an ion with a positive charge |
Chemical Bond | the force that holds atoms or ions together |
Ionic Bond | force that holds cations and anions together |
Chemical Formula | a notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound. |
Chrystals | solids who's particles are arranged in a lattice structure |
Covalent Bond | Sharing of electrons form this bond |
Molecule | a neutral group of atoms that are joined together by one or more covalent bonds. |
Polar Covalent Bond | A covalent bond in which electrons aren't shared equally |
Poly-atomic Ion | a covalently bonded group of atoms that has a positive or negative charge and acts as a unit. |
Metallic Bond | the attraction between a metal cation and the shared electrons that surround it. |
Alloy | a mixture of two or more elements, at least one of which is a metal. |