WHAT IS Lead
Lead is a chemical issue with the image Pb and atomic wide variety 82 It is a heavy metal that is
denser than most common materials. Lead is gentle and malleable and additionally has an
enormously low melting point. When freshly cut, lead is silvery with a hint of blue; it tarnishes to a
dull grey coloration when exposed to air. Lead has the very best atomic quantity of any steady issue
and three of its isotopes are endpoints of important nuclear decay chains of heavier elements.
Lead is a particularly unreactive post-transition metal. Its weak metal character is illustrated by way
of its amphoteric nature; lead and lead oxides react with acids and bases, and it tends to shape
covalent bonds. Compounds of lead are usually discovered in the +2 oxidation country alternatively
than the 4 state common with lighter individuals of the carbon group. Exceptions are in the main
confined to organolead compounds. Like the lighter members of the group, lead tends to bond with
itself; it can shape chains and polyhedral structures.
Type of Lead
Uses of Lead
This easily worked and corrosion-resistant metal has been used for pipes, pewter and paint since
Roman times. It has also been used in lead glazes for pottery and, in this century, insecticides, hair
dyes and as an anti-knocking additive for petrol. All these uses have now been banned, replaced or
discouraged as lead is known to be detrimental to health, particularly that of children.
Lead is still widely used for car batteries, pigments, ammunition, cable sheathing, weights for lifting,
weight belts for diving, lead crystal glass, radiation protection and in some solders.
It is often used to store corrosive liquids. It is also sometimes used in architecture, for roofing and in
stained glass windows.
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