Question

Which are radioactive elements in periodic table?

Answer 1

naturally occurring radioactive elements are radium, thorium and uranium

Answer 2

Technetium (TC)- Transition metal

Promethium (Pm)- Rare earth metal

Polonium (Po)- Metalliod

Astatine (At)- Halogen

Radon (Rn)- Noble gas

Francium (Fr)- Alkali Metal

Radium (Ra)- Alkali Earth Metal

Actinium (Ac)- Rare Earth metal

Thorium (Th)- Rare Earth Metal

Protactinium (Pa)- Rare Earth Metal

Uranium (U)- Rare Earth Metal

Neptunium (Np)- Rare Earth Metal

Plutonium (Pu)- Rare Earth Metal

Americium (Am)- Rare Earth Metal

Curium (Cm)- Rare Earth Metal

Berkelium (Bk)- Rare Earth Metal

Californium (Cf)- Rare Earth Metal

Einsteinium (Es)- Rare Earth Metal

Fermium (Fm)- Rare Earth Metal

Mendelevium (Md)- Rare Earth Metal

Nobelium (No)- Rare Earth Metal

Lawrencium (Lr)- Rare Earth Metal

Rutherfordium (Rt) or Kurchatovium (Ku)- Transition Metal

Dubnium (Db) or Nilsborium (Ns)- Transition Metal

Seaborgium (Sg)- Transition Metal

Bohrium (Bh)- Transition Metal

Hassium (Hs)- Transition Metal

Meitnerium (Mt)- Transition Metal

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