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31 Cards in this Set
- Front
- Back
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chemical bonding
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the joining of atoms to form new substances
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chemical bond
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an interaction that holds two atoms together
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valence electron
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electron in the outermost shell
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the key to bonding
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valence electrons
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how to determine the number of valence electrons in an element
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look at the number of electrons in the outer shell
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why atoms bond
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they want to become octates
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elements that have a full electron shell with just two electrons
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hydrogen and helium
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bond that involves the transfer of electrons
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ionic
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metal and nonmetal bond
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ionic bond
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bond that involves the sharing of electrons
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covalent
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nonmetals and nonmetals bond
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covalent bond
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bond that involves electrons moving throughout a material
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metallic bond
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bond that makes salts
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ionic
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bond that makes molecules
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covalent
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ion
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a charged particle
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how an ion is formed
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when an atom gains or loses one or more electrons
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type of elements that are more likely to lose electrons
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metals
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charge left when electrons are lost
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positive
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type of elements that are more likely to gain electrons
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nonmetals
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charge left when electrons are gained
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negative
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elements that are tough to remove electrons from
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nonmetals - you need a large amount of energy
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elements that are easy to remove electrons from
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metals - you don't need a large amount of energy
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why crystal lattices have certain properties
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because of the strong attraction
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properties of crystal lattices
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brittleness and high melting/boiling pointing
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makes up matter
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compounds
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molecules are _______
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neutral
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the simplest kind of molecules
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diatomic
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what diatomics consist of
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2 atoms
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type of bond where electrons jump from atom to atom
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metallic
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metal to metal bond
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metallic
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why metallic bonding allows metals to have the properties they do
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the electrons are jumping from atom to atom and the properties go with them
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