Answer:
The answer is "Radium is a radioactive isotope produced by spontaneous decay of its atoms of uranium, which would be a radioactive element in of itself".
Step-by-step explanation:
With the symbol Ra as well as the atomic mass 88, radium is a chemical element. It is the 16th element of its periodic table and also referred to as alkaline earth metals, in group 2. It is the element, which is formed by the spontaneous decay of uranium atoms, a radioactive element in itself.