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chemistry ch6
| Question | Answer |
|---|---|
| when atoms bond, they lose_________ | energy |
| when atoms bond, they gain ________ | stability |
| why do atom bond? | to gain stability and lose energy |
| an atom becomes more stable by bonding with another atom if the reulting electron configuration is more like that of what group of elements? | noble gases |
| chemical bonds between atoms involve the rearrangement of ___________ to maximize stability. | electrons |
| what type of bonds would you exppect in a chemical compound of oxygen and sodium? | ionic bond |
| a bond that forms between two or more atoms that have high electon affinities is mst likely a(n) _______ bond | covalent |
| the measure of an atom's ability to attract electrons to itself in a chemical bond is called _______. | electronegativity |
| the polarity of a bond depends on the difference in the atoms' _________ | electronegativities |
| which of the following is a nonpolar covalent compound? | diatomic (compound with the ame product, Br2) |
| an extreme polar bond is a ____ bond | ionic |
| which do we call the attraction between opposite electrical charges? | electrostatic force |
| a dash in a lewis structure represents _____ electrons | 2 |
| the central atom in a lewis structre is usually the atom | whith the most unpaired electrons |
| if the atoms below formed a covalent compound, which is most likely to be the central atom? | carbon |
| although they are made of two or more atoms, _________ often act as single charged particles in chemical reactions and solutions | polyatomic ions |
| covalent compound | hard and brittle, high melting points, glassy lusters, unusul elctrical properties |
| ionic compound | strong bounds, and therefore high melting point, dense, brittle, hard solids, good elctron conductors if dissolved or molten |
| covalent molecules are formed by | nonmetals |
| ionic molecules are formed by | metal, and nonmetals |
| metalic molecules are formed by | metals |
| the ratio of cations to anions in an ionic compound is expressed in a chemical formular known as a(n) _______ unit. | formular |
| what is an orderly arrangement of ions in a three-dimensional pattern within a compound is called a(n) | crystal lattice |
| the main factor influencing the arrangement of ions in a crystal lattice is | charge |
| a mixture of atoms from multiple metals which has metallic properties is called a(n) | network |
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brpa8501
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