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13 Cards in this Set
- Front
- Back
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why do elements within a group on a peridic table have similar properties?
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They have the same number of valence electrons
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What are valence electrons and what do they determine?
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The valence electrons in the highest occupied energy level of an elements atoms. They determine the chemical properties in an element
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How do you find the number of valence electrons in a representative element?
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By the group number
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What is a cation and how is it produced?
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A positively charged ion created by the loss of electrons
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What is an anion and how is it produced?
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A negatively charged ion created by gain of electrons
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What is a halide ion, name four halides
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Ions produced when higher halogens gain a volume electron; Cl,F,Br,I
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How many electrons do halogens need to achieve noble gas configuration?
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1
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What is an ionic compound?
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Compound composed of cations and anions
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What is an ionic bond?
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The electric forces that hold ions together in ionic compounds
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Name two properties of ionic compounds
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1)Crystalline solids at room temp.
High melting point |
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Under what conditions can ionic compounds conduct electricity?
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Melted or dissolved in water
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What is a coordination number?
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Number of ions of opposite charge that surround an ion in a crystal
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What is an alloy?
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A mixture of 2 or more elements, one of which is a metal
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