chemical properties of radioisotopes? Help please (1 Viewer)

[DannyT]

This question was from the 2007 CSSA trial: explain a use of a medical radioisotope in terms of ONE of its chemical properties.

It's probably a simple question because its 1 mark but I have no idea as to what chemical properties of radioisotopes entails because I've only ever studied their nuclear properties. Thanks in advance.

 

[sam5]

see that word 'chemical'? They r gonna delete that word in the syllabus when the new one comes out.

Just say something basic. e.g. Technetium - 99m is used for medical purposes (in diagnostics and treatments of diseases) because it has a short half life of 6 hrs. This makes it appropriate to use, as this property will ensure as less radiation exposure to the patient as possible.

 

[annabackwards]

We went through this question at the TSFX lectures with a senior marker who marked it.

She said they accepted nuclear properties instead of chemical properties but we only learn nuclear properties XD

 

[boxhunter91]

sam5 that is the perfect answer. You can also go on to say it easily excreted from the body...

 

[sam5]

sam5 that is the perfect answer. You can also go on to say it easily excreted from the body...

thanks mate.

 

[DannyT]

lol half life is a nuclear property...haha if they accepted nuclear properties that means that no one came up with any chemical ones.

apparently a chemical property of Tc-99m is its ability to be chemically combined with tin which then attaches itself to red blood cells. Thus abnormalities in the circulatory system can be detected.