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Additional
Lead
English Wikipedia - The Free Encyclopedia
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Lead
Lead
is a
chemical element
in the
carbon group
with symbol
Pb
(from ) and
atomic number
82. Lead is a soft,
malleable
and
heavy
post-transition metal
. Metallic lead has a bluish-white color after being freshly cut, but it soon
tarnishes
to a dull grayish color when exposed to air. Lead has a shiny chrome-silver luster when it is melted into a liquid. It is also the heaviest (has the highest
atomic number
) non-
radioactive
element (two radioactive elements, namely
technetium
and
promethium
, are lighter).
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