Thorium was discovered in 1828 in Sweden by the well-known chemist Jöns Jakob Berzelius.
No it is not found . Monazite sand usually contains thorium.
Thorium can be strip mined and it could be deep mined. It is be produced as a byproduct of the production of rare earth elements, and since the current production as a byproduct far exceeds the demand, it is not usually mined.
no
Astatine was discovered by D.R. Corson at the University of California in 1940. He, Emilio Segre, and K.R. Mackenzie created a small amount of it by bombarding Bismuth-209 with accelerated alpha particles.
no one really knows how much but it's a really rare element in the earth
Thorium is found in Orissa and Kerala states.
Thorium was discovered by Jons Jakob Berzelius in 1828.
United Kingdom hasn't today known reserves of thorium.
Thorium exist in many minerals; examples: thorianite, thorite, monazite.
Thorium was discovered in 1829 by the Swedish chemist Jons Jakob Berzelius.
The worlds largest thorium deposit is actually found in Turkey, based on present day foundings. Turkey is known to posses an approximate 35% of the world's Thorium reserve.
Radon exist in rocks containing uranium or thorium.
Yes; a mean value is 0,1 microgram thorium for a normal man.
Kerala.
India
Thorium: 90 protons Uranium: 92 protons
Thorium is mainly found in India.