-- card: 35784 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 14320
-- name: Pb


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Pb

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Lead

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82

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207.2

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11.35

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327.502

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1740

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+2,+4

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(Anglo-Saxon, lead; L. plumbum) Known to the ancients and mentioned in Exodus. Believed by alchemists to be the oldest known element and associated with the planet Saturn. Found in nature sparingly and as galena, anglesite, minim, cerussite and other minerals. Due to the toxicity of lead, environmental action has been taken to reduce lead in gasoline and other products.

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metal, bluish-white, bright luster, soft, malleable, ductile, poor electrical conductor, resistant to corrosion, tarnishes upon exposure to air, the use of lead has been curtailed due to its cumulative toxicity

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used by the Romans in plumbing (the decline of the Roman empire is attributed to the lead in the water supply), used to contain corrosive liquids, alloying, storage batteries, cable covering, ammunition, antiknocking agent in auto fuel, artists' paints, shield against x-rays, absorb vibration, lead oxide to produce crystal glass, insecticides, 

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0.154

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Electron Configuration:

1s  2s  2p  3s  3p  3d  4s  4p  4d  4f  5s  5p  5d  5f  6s  6p  6d  6f  7s 
 2   2    6    2    6   10   2   6  10  14  2    6  10         2    2