Thorium

Thorium ek chemical element hae, jiske chemical symbol Th, atomic number 90 aur aomic mass 232 hae . Periodic table me ii uu chemical elements ke group...

of the longest-lived isotope of the element. However, three elements, Thorium, Protactinium, and Uranium, have a characteristic terrestrial isotopic...

Atomic Number Naam Chinh 89 Actinium Ac 90 Thorium Th 91 Protactinium Pa 92 Uranium U 93 Neptunium Np 94 Plutonium Pu 95 Americium Am 96 Curium Cm 97...