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Essay

Polonium

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Issue:

Science

 

Written by:

Margaret M

 

Date added:

August 31, 2015

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 445

 

Was viewed:

10184 times

 

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Essay content:

It is made in very small quantities through a nuclear reaction of bismuth. Neutron irradiation of 209bismuth (atomic number 83) gives 210polonium (atomic number 84). 209Bi + 1n ?? 210Po + e- Polonium-210, 210Po, transmutes into the lead isotope 206Pb by the emission of an ??-particle. The half-life for this process is just over 138 days meaning that after 138 days one-half of the original 210Po has disappeared and after 2 times 138 days 3/4 has gone...
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The half-life for this process is just over 138 days meaning that after 138 days one-half of the original 210Po has disappeared and after 2 times 138 days 3/4 has gone. 21084Po ?? 20682Pb + 42He Polonium metal is unique in that it is the only element whose structure (known as the -form) is a simple cubic array of atoms in which each atom is surrounded by six other polonium atoms...
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