After 48,2 days the amount of Th-234 will be 25 g.
Bitumen has not thorium.
Thorium is not expensive; for thorium dioxide (99,99 %) the price is cca. 0,1 USD/g.
Approx. 50 USD/pound for thorium dioxide (99,99 %).
United States has thorium reserves of approx. 160 000 t.
The half life of thorium-232 is 1,405(6).10e10 years.
Thorium-234 has a half-life of 24.1 days. How much of a 100-g sample of thorium-234 will be unchanged after 48.2 days?
After 48,2 days the amount of Th-234 will be 25 g.
25 gExplanation:Think about what a nuclear half-liferepresents, i.e. the time needed for an initial sample of a radioactive substance to be halved.
Bitumen has not thorium.
After 24,10(3) days (the half-time of this isotope) the mass is 50 %.
India has 25 % thorium of the world.
Thorium is not expensive; for thorium dioxide (99,99 %) the price is cca. 0,1 USD/g.
Ceramic bowls for kitchen, with thorium, doesn't exist.
Approx. 50 USD/pound for thorium dioxide (99,99 %).
United States has thorium reserves of approx. 160 000 t.
When not mixed with clay, about 0.02% (depending on the type of thorium compound)of ingested Thorium is absorbed into the body but since Thorium is strongly adsorbed by clay, the absorption of ingested Thorium mixed with clay soil is negligible, much less than 0.02%.
The half life of thorium-232 is 1,405(6).10e10 years.