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Physical Science
Vocab
Question | Answer |
---|---|
Electron Dot Diagram | A model of an atom in which each dot represents a valence electron. |
Ion | An atom that has a net positive or negative electric 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 as a unit. |
Ionic Bond | The 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. |
Covalent Bond | Two hydrogen atoms can achieve a stable electron configuration by sharing their electrons. |
Molecule | A neutral group of atoms that are joined together by one or more covalent bonds. |
Polar Convalent Bond | A covalent bond in which electrons are not shared equally. |
Polyatomic ion | A covalently bonded group of atoms that has a positive or negative charge and acts as a unit. |