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22 Cards in this Set
- Front
- Back
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Vertical columns |
Groups |
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Horizontal rows |
Periods |
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Group 1 |
Alkali metals |
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Group 2 |
Alkaline earths |
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Group 7 |
Halogens |
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Group 8/0 |
Noble gases |
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Left of ‘staircase’ |
Metals |
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Central ‘block’ (scandium-zinc) |
Transition metals |
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Group number |
Number of electrons in outer shell |
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Periodic number |
Number of shells |
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What are the properties of the Noble gases found in group 0/8? |
- Unreactive (full outer shells) - Monoatomic (exist as single atoms) - All gases |
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What happens as you go down group 0/8? |
- Density increases as atoms get bigger - Mpt & Bpt increases cuz inner-atomic forces increases with atomic size |
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What are the uses of the Noble gases found in group 0/8? |
- Helium = balloons, air ships, diving gas - Neon = Advert signs - Argon = give inert atmosphere when welding Al, light bulbs to prevent burning of filament - Xenon = car headlight & lighthouse beacons |
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What are the properties of the Alkali metals found in group 1? |
- All metals - soft & low Mpt - very reactive - stores under oil, prevents contact with air/ moisture - 1 electron in outer shell - form ions with single + charge - compounds from G 1 = soluble - Alkaline solutions when react with H2O - strong reducing agents |
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What are the properties of the element lithium found in group 1 (Alkali metals)? |
- Mpt (c) = 181 - Bpt (c) = 1342 - Density (g/cm3) = 0.53 - Hardness = hard cheese - Reaction w/ H2O = fast |
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What are the properties of the element sodium found in group 1 (Alkali metals)? |
- Mpt (c) = 98 - Bpt (c) = 883 - Density (g/cm3) = 0.97 - Hardness = cold butter - Reaction w/ H2O = very fast
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What are the properties of the element potassium found in group 1 (Alkali metals)? |
- Mpt (c) = 63 - Bpt (c) = 760 - Density (g/cm3) = 0.86 - Hardness = butter at room temp - Reaction w/ H2O = vigorous, produces flames |
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What are the properties of the element rubidium found in group 1 (Alkali metals)? |
- Mpt (c) = 39 - Bpt (c) = 686 - Density (g/cm3) = 1.53 - Hardness = chewing gum - Reaction w/ H2O = mildly explosive |
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What are the properties of the element caesium found in group 1 (Alkali metals)? |
- Mpt (c) = 29 - Bpt (c) = 669 - Density (g/cm3) = 1.88 - Hardness = warm chewing gum - Reaction w/ H2O = very explosive |
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What are the properties of the element francium found in group 1 (Alkali metals)? |
- Mpt (c) = 20 - Bpt (c) = 600 - Density (g/cm3) = 2.00 - Hardness = very soft - Reaction w/ H2O = very big bang |
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What happens as you go down group 7? |
Reactivity increases |
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What does the ease of removal of outer elec |
X |
