Question

Strontium of radio-active fall out is

• A. Sr${}^{95}$
• B. Sr${}^{90}$
• C. Sr${}^{80}$
• D. Sr${}^{85}$

Answer 1

The correct option is B Sr${}^{90}$

Sr${}^{90}$ is a radioactive isotope of strontium. It is formed in nuclear reactors or during the explosion of nuclear weapons. A large portion of this strontium accumulates in the bone. It behaves like calcium and mostly attaches to the surfaces of bones. This leads to cancer as a result of damage to the genetic material of the bone, nose, and lung and leukemia cells

So, the correct answer is 'Sr${}^{90}$