Question

What is the isotope symbol for Iodine-131?

Answer 1

Hint : In order to answer this question, to write the symbol for an isotope, put the atomic number as a subscript to the left of the atomic symbol and the mass number (protons plus neutrons) as a superscript.

Complete Step By Step Answer:
Iodine-131 has the isotope symbol of ${}_{53}^{131}I$
Explanation:
The isotope sign, also known as isotope notation or nuclear notation, represents an isotope's atomic number $,Z,$ as well as its mass number, $A$ . On the left-hand side of the element's chemical symbol, $X,$ the mass number is expressed as a superscript. On the left-hand side of the element's chemical symbol, the atomic number (number of protons) is expressed as a subscript.
The mass number $\left( A \right)$ of Iodine-131 is $131$ , and the atomic number $\left( Z \right)$ is $53$ . As a result, the nuclear symbol for Iodine-131 is ${}_{53}^{131}I$ .

Additional Information:
Iodine-131 is a significant iodine radioisotope. It has an eight-day half-life in terms of radioactive decay. Nuclear energy, medical diagnostic and treatment operations, and natural gas production are all linked to it. It also plays an important function as a radioactive isotope found in nuclear fission products, and it contributed significantly to the health risks associated with open-air atomic bomb testing.

Note :
Iodine-131 is a gamma-emitting radioactive industrial tracer that is widely used. To determine the injection profile and location of fractures caused by hydraulic fracturing, radioactive tracer isotopes are injected with hydraulic fracturing fluid.