Chapters 5-8; Labs 3,4
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| When chemicals interact with one anther they can be said to have reacted. | true
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| When shared electrons are shared equally so that they spend about the same amount of time with each atom, the resulting atom is likely to be polar. | true
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| A double bond is stronger than a triple bond. | false
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| A diatomic molecule is one having two of the same kind of atom bound together. | true
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| Halogens often form diatomic molecules. | true
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| The lanthanoids (or lanthanides) are also called the rare earth metals. | true
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| None of the actinoid (or actinide) series elements are radioactive. | false
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| Polar molecules tend to dissolve readily in water. | true
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| Atoms consist of a few particles moving about in mostly empty space. | true
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| Atom Group Name of: 1A | alkali metals
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| Atom Group Name of: 2A | alkaline earth metals
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| Atom Group Name of: B groups | transition metals
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| Atomic Group Name of: 3A to 6A | post-transition elements
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| Atomic Group Name of: 7A | halogens
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| Atomic Group Name of 8A | noble gases
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| Symbol: Mg | Element: magnesium
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| Symbol: Mn | Element: manganese
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| Symbol: O | Element: oxygen
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| Symbol: Cu | Element: copper
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| Symbol: Fe | Element: iron
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| Symbol: Au | Element: gold
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| Symbol: Ag | Element: silver
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| Symbol: Pb | Element: lead
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| Symbol: K | Element: potassium
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| Symbol: Na | Element: sodium
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| name of molecule: CH4 | molecular formula: methane
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| name of molecule: H20 | molecular formula: water
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| name of molecule: CO2 | molecular formula: carbon dioxide
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| name of molecule: O2 | molecular formula: oxygen
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| name of molecule: C2H2 | molecular formula: ethylene
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| A substance that can be readily shaped is said to be | malleable
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| Semiconductors are found among the | metalloids
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| Atoms on the far right- hand side of the periodic table that are completely satisfied with their number and arrangement of electrons. They are called the | noble gases
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| An ion is an atom that bears a charge. A ion carrying a positive charge is called a | cation
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| An ion carrying a negative charge is called an | anion
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| Name two types of chemical bonding | ionic and covalent
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| Which of these two types is the stronger ionic or covalent? | covalent
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| In writing a chemical equation, the reactants are shown on the ?-hand side of the arrow and the products are shown on the ?-hand side. | reactants on the left and products on the right
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| List four properties of metals | 1. shine when polished 2. malleable & ductile 3. conduct heat 4. conduct electricity
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