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2012 October
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Picture of the day
Electrolytically refined
pure superficially
oxidized
lead
nodules and a high purity
1 cm
3
lead cube for comparison. Lead is a soft,
malleable
heavy metal
. Its symbol is Pb, which comes from the
Latin
word
plumbum
. It is bluish-white when freshly cut, but it soon
tarnishes
to a dull gray when exposed to air.
Photo:
Alchemist-hp
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