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12 Cards in this Set
- Front
- Back
What is a compound?
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a combination of 2 or more elements
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What is the smallest part of a compound
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a molecule
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What is an ion?
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a charged particle, that has more or fewer electrons than protons
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How do atoms become ions?
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they gain or lose elecrons
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What is a cation?
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atom that has lost electrons
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What is an anion?
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atom that has gained electrons
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What is an ionic bond?
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a bond where atoms lose or gain electrons, whenever there is a metal in the bond,opppossite ions attract
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What is a covalent bond
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atoms share electrons
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What are the elements in group 18 and why are they called this?
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Noble Gases- and this is b/c they are the least reactive and dont react with anything.
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______ are pieces of matter in which all the atoms are alike
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Elements
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The smallest piece of an element is an __________
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Atom
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Compounds have characteristics that are _______ than the elements that make them up
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different
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