A soft silvery-white tetravalent radioactive metallic element, isotope 232 is used as a power source in nuclear reactors, occurs in thorite and in monazite sands
English: thorium, Th, atomic number 90
Bahasa: torium
Th, Thursday, atomic number 90, thorium
English: thorium, Th, atomic number 90
Bahasa: torium
English: Thursday, Th