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In: Physics

a. We have radioactive material with the chemical formula (Ce,La,Nd,Th)(PO4,SiO4). A sample has 5%, 10%, 25%...

a. We have radioactive material with the chemical formula (Ce,La,Nd,Th)(PO4,SiO4). A sample has 5%, 10%, 25% and 100% of this material. calculate the activity of the samples.
b. would activity be different if the samples with 10% and 25% were dissolved in acids or other minerals? assume same percentages.

show all steps for the question to be worth any marks

the result should be given in Bq/gram

thorium 232 half life is public information and it should be used in this case. also thorium 232 has been in present since the beggining of our universe which is also public information .

Solutions

Expert Solution

B. The question is unclear. The activity of the samples if dissolved in any material or acid will not change as long as their amount does not change. In other words, as Activity is times N, where is a constant and N is the number of undecayed nuclei which depends on the amount of radioactive sample taken and their percentange. Activity will be different only if N is different.

genius_generous answered 2 years ago
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