अर्थ : 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.
पर्यायवाची : atomic number 90, th
Thorium ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Thorium ka matlab kya hota hai?