What is the isotope symbol for iodine-131?
Answer:
The isotope symbol for iodine-131 is \({ }_{53}^{131} \mathrm{I}\)
Explanation:
The isotope symbol, called isotope notation or nuclear notation indicates both the atomic number, \(Z\), and the mass number, \(A\) of an isotope. The mass number is written as a superscript on the left-hand side of the element’s chemical symbol, \(X\). The atomic number (no. of protons) is written as a subscript on the left-hand side of the element’s chemical symbol.
For iodine-131, its mass number (A) is \(131\), and its atomic number (Z) is \(53\). Therefore, the nuclear notation for iodine-131 is \({ }_{53}^{131} \mathrm{I}\)