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2015-05-07T11:39:08+05:30
Lead is a chemical element ,lead sybol is Pb   lead is from carbon family.Lead has been around for thousands of years. It is impossible to say when humans first discovered the element. discovered by Roman.....

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lead is a chemical element.Lead was discovered by Known in antiquity in 0.Some say that it was also discovered by Romans
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2015-05-07T11:44:46+05:30
Lead has been around for thousands of years. It is impossible to say when humans first discovered the element. It does not occur as an element in the earth very often. But one of its ores, lead sulfide (pd) , is fairly common. It is not difficult to obtain pure lead metal from lead sulfide. Humans probably discovered methods for doing so thousands of years ago.

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