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28 Cards in this Set
- Front
- Back
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metals
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conductors
solid at room temp 1-3 electrons in outer shell |
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malleable
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hammered or rolled
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ductile
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can be made into wires
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ionic bonds
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between metals and nonmetals
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metallic bonding
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positively charged metallic ions are surrounded by electron clouds
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Alkali metals
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reactive
1 electron in outer shell don't occur naturally in elemental form |
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radioactive element
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breaks down particle and gives off energy
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Alkaline Earth Metals
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group 2
2 electrons |
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Transition Elements
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3-12 groups
occur uncombined in nature color compounds |
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iran triad
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iron, cobalt, nickel
used to make steel |
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group 11
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copper silver gold
stable malleable coins; but got expensive |
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group 12
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zinc cadium mercury
mercury only metal liquid at rm temp |
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Lanthiades
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follow lanthanum
58-71 |
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Actinides
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90-103
follow actinium radioactive and unstable |
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ores
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metals in earth's crust combined with other elements
mixed in clay or rock |
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nonmetals
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gas at room temp
not conductors electrons highly attracted to nucleus ionic/covalent bonds |
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hydrogen
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90% of all atoms
diatomic one electron |
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diatomic molecule
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occurs with two of the same element bonded covalently
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Halogens
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gropu 17
often diatomic salts reactive 7 electrons |
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Noble Gases
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isolated
stable no natural compound |
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Metalloids
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ionic/covalent
decent conductors |
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The Boron Group
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13
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The Carbon Group
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14
4 electrons |
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allotrope
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different forms of the same element
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Nitrogen Group
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15
5 electrons covalent compounds |
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Oxygen Group
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16
6 electrons |
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Synthetic Elements
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smashing existing elements to create new ones
92 or more protons |
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Transurium Elements
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no particular group
disentigrate quickly |
