mathical mathical

15-10-2014
Chemistry

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What element is used as a shield to protect people from radioactive substances?

Respuesta :

22-10-2014

the element which is used for protection from radioactive substances is lead ..
its symbol is Pb..
atomic number of lead is 82..
melting point is 327.5 degree C
boiling point is 1750 degree C..

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