Lead 82 | great-chemistry

Lead Pb

Where is lead used--or where does it impact your everyday life?

Lead is ued less because of its toxicity

Sheets of lead are used as electrodes in car batteries--lead accumulators

Diving weights are used by divers to reduce buoyancy--the image shows 0.90 kg (2 lb) and 1.36 kg (3 lb) weights.

Lead Symbol: Pb

Atomic number: 82 Atomic Mass: 207.2

Group number (region): 14 Period number: 5

Melting point: 327.5 oC (621.4 oF)

Boiling point: 1749 oC (3180.2 oF)

Reaction with air (oxygen): Not reactive

Reaction with water: Doesn't corrode easily

Electron configuration: 2, 8, 18, 32, 18, 4

Source: LANL.gov

Researcher: Alfie P

A sample of a lead ore, phosgenite, PbCO3Cl2 from Monteponi, Sardegna, Italy on display at the National Museum of Natural History, Washington DC during a Chemistry One field trip.

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Lead crystal cut glass contains around 33% lead II oxide, PbO, which allows the glass to be cut to look like crystals.

A sample of a barium/lead ore, francevillite, BaPb(UO2)2(VO4)2.5H2O from Mounana, Gabon on display at the National Museum of Natural History, Washington DC viewed during a Chemistry One field trip.

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Below samples of cerussite, PbCO3.

Stained glass uses strips of lead to separate and hold the glass shapes.

Crocoite PbCrO4 from Adelaide, Dundas, Tasmania viewed at the National Museum of Natural History, Washington DC during a Chemistry ONE field trip

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Lead ore, galena, which is lead sulfide, PbS viewed at the Castleton Historical Society Museum in Castleton, Derbyshire, UK located in the Peak District National Park.

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Lead vest worn to protect the torso from X-rays when other parts of the body are being X-rayed. Inova Orthopedics.

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12 V car battery--a lead acid battery

Lead cathode (- terminal): Pb(s) + HSO4−(aq) → PbSO4(s) + H+ (aq) + 2e−

Lead IV oxide anode (+ terminal) PbO2(s) + HSO4−(aq) + 3H+(aq) + 2e− → PbSO4(s) + 2H2O(l)

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