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Physics Coursework Speech Dave King 12NI Lead is one of the most widely used metals in the world but due to variable factors, it is rarely seen. It is normally hidden from view in such things as computer and TV screens, perfecting golf clubs, under car bonnets, batteries and probably most importantly radiation shielding. Contrary to popular belief lead is not used in pencils or household paint. But today I'm not hear to talk about everyday uses for but more specifically the role that lead plays in shooting and air rifle sports. Lead is a bluish-white lustrous metal with the atomic symbol PB. It is extremely ductile and a poor conductor of electricity. It does not corrode easily but when exposed to air will tarnish. Lead has played a major part in shooting for generations as a reasonably cheap form of ammunition. The reason for this is that lead is a very dense metal...

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