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17 Cards in this Set
- Front
- Back
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What are the horizontal rows in the table called?
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Periods
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What are the vertical called?
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Groups
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What can you determine from the Atomic #?
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The # of Protons
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How do you find the # of neutrons?
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Round the atomic mass and subtrat the atomic# from it.
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How can we find the number of electrons in the periodic table?
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The number of electrons and protons is equal.
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What type of charge does a proton have?
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Positive +
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What type of charge does a neutron have?
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Neutral 0
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What type of charge does the electron have?
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Negative -
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What are the most common elements in the periodic table?
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Metals
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How are elements arranged on the periodic table?
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By their Atomic #.
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How can we predict the properties and behavior of an element?
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By their group.
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Why are noble gasses called that?
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Because their energy shells are full.
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What are valence electrons?
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Electrons in the it's outermost shell.
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What are Alkali Metals?
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Unstable elements with only one electron in the outer shell.
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What are Haologens?
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Elements with seven valence electons in their outer shell and need one more electron to fill their outer shell.
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What are positive Ions?
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An atom that has lost an electron and thus has more protons than electons, so is positively charged.
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What are negative Ions?
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An atom that has gained an electron and thus has less protons than electons, so is negatively charged.
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