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9th Physical Science
Chapter 18
| Term | Definition |
|---|---|
| Chemical bond | Force that holds atoms together in a compound. |
| Chemical formula | Chemical shorthand that uses symbols to tell what elements are in a compound and their ratios. |
| Covalent bond | Attraction formed between atoms when they share electrons. |
| Ion | Charged particle that has either more or fewer electrons than protons. |
| Ionic bond | The force of attraction between the opposite charges of the ions in an ionic compound. |
| Molecule | A neutral particle that forms as a result of electron sharing among atoms. |
| Nonpolar molecule | Molecule that shares electrons equally and does not have oppositely charged ends. |
| Polar bond | A covalent bond in which the electrons are not shared equally, resulting in a slightly positive end and a slightly negative end. |
| Polar Molecule | A neutral molecule in which unequal electron sharing results in a slightly positive end and a slightly negative end. |
| Binary compound | Compound that is composed of two elements. |
| Hydrate | Compound that has water chemically attached to its atoms and written into its chemical formula. |
| Oxidation number | Positive or negative number that indicates how many electrons an atoms has gained, lost, or shared to become stable. |
| Polyatomic ion | Positively or negatively charged, covalently bonded group of atoms. |
Created by:
LeMay1
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