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Chapter 11: Q42E (page 519)

Polonium- 207 may undergo three kinds of undergo radioactive decay: 尾+,伪 and electron capture but it does not 尾-decay. Given its position relative to the curve of stability, explain why this is not unexpected.

Short Answer

Expert verified

If Polonium-207undergo 尾- decay, it would gain a charge, which means it would become Astatine-207.

Since the curve of the stability shows that neutron should increase as proton increase, the decay proposed that loses a neutron loses a neutron but gain a proton would not be stable.

Step by step solution

01

Given data 

The given element is Polonium- 207.

02

Concept of  β decay

In Nuclear Physics, Beta decay ( 尾 decay) is a type of radioactive decay in which a beta particle (fast energetic electron or positron) is emitted from an atomic nucleus, transforming the original nuclide to an isobar of that nuclide.

03

Explain how Polonium-207 does not undergo β-  decay

If Polonium-207underwent 尾-decay, it would gain a charge, which means it would become Astatine- 207.

Since the curve of the stability shows that neutron should increase as proton increase, the decay proposed that loses a neutron loses a neutron but gain a proton would not be stable.

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