Bob Jones Chemistry - Chapter 6
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| alloy | A mixture of a metal's atoms with another element. It has metallic properties.
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| chemical bond | A force of attraction produced by transferring or sharing electrons that holds atoms together in compounds.
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| covalent bond | Two atoms held together by their mutual attraction for the same pair of electrons. It usually involves two nonmetals.
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| crystal lattice | An extensive three-dimensional structure that represents the regular pattern of atoms or ions.
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| delocalized electron | An electron that can move between several different bonds; in benzene, and electron that can move throughout circular spaces above and below the plane of bonded nuclei.
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| electron-sea theory | A theory that offers an explanation of how metals bond: the valence electrons of atoms are said to be freely shared among all atoms; also called the free-electron theory.
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| electrostatic force | The field force exerted by electrical changes. It may be repulsive or attractive depending on the kinds of charges interacting.
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| formula unit | The simplest ratio of elements in an ionic compound that describes its composition.
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| ionic bond | The attraction and electron transfer between two oppositely charged ions in a solid. It usually involves a metal and a nonmetal.
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| Lewis structure | A two-dimensional diagram that uses element symbols and dots to show the bonds between different atoms.
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| metallic bond | A communal sharing of electrons between metal atoms.
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| network covalent substance | Atoms covalently bonded into a continuous three-dimensional network, such as diamond.
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| octet rule | The rule that an atom tends to gain, lose, or share electrons until its outer level s and p orbitals are filled with eight electrons. This activity gives an element the electron configuration and stability of a noble gas.
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| polarity | The tendency of an object to form two localized poles of opposite character. In chemistry, polarity relates to electrical charge.
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| polyatomic ion | A group of atoms that maintains a constant electrical charge while existing as a unit in a wide variety of chemical reactions, such as SO 4 2-.
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Or sort by any of the columns using the down arrow next to any column heading.
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