1-0 g of radium is reduced by 2-0 mg in 5 years by -decay - calculate the half life of radium

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Properties of Alpha, Beta and Gamma Radiations

1.0 g of radi...

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1.0 g of radium is reduced by 2.0 mg in 5 years by α-decay . calculate the half life of radium

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1 g

2.1 m g

5

2 m g

5

α

_{10} 998 =

2.9991

1600 y e a r s

2 g m

0.125 g m

1620

5

5 g m

= 223)

1600

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