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9Sci CH11
9th Science CH11 Chemical Bonds
| Term | Definition |
|---|---|
| binary compound | a chemical compound composed of two elements;; for example sodium chloride |
| chemical bond | the force that holds together the atoms in a compound; chemical bonding occurs because atoms because atoms of most elements become more stable by losing, gaining and sharing electrons |
| chemical formula | a precise statement that tells which elements are in a compound and their ratios |
| chemically stable | describes an atom whose outer energy level is completely filled with electrons |
| corrosive | hazardous compound that attacks and alters metals, human tissue, or other materials; for example, oven cleaners and battery acid |
| covalent bond | a type of chemical bond formed by atoms when they share electrons; covalent bonding produces molecules |
| hydrate | a compound that has water molecules chemically attached to its ions and written into its formula |
| ion | a positively or negatively charged atom |
| ionic bond | a type of chemical bond formed by the attraction between opposite charges of the ions in an ionic compound |
| nonpolar molecule | a molecule that does not have oppositely charged ends |
| oxidation number | a positive or negative number that indicates how many electrons an atom has lost, gained, or shared when bonding with other atoms |
| polar molecule | a molecule with opposite charges on each end |
| polyatomic ion | a group of covalently bonded atoms in which the whole group is positively or negatively charged |
| toxic | hazardous substance that can injure living tissue; toxic compounds are poisonous |
Created by:
djhockett5
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