Enter the atomic symbol, including mass number and atomic number, for iodine-125.

Iodine - 125

The atomic symbol of iodine is ¹²⁵₅₃ I

The symbol for iodine is I

The atomic number of iodine is 53,

and the atomic mass of iodine is 125.

The representation of the atomic symbol is as, the atomic mass is written in uppercase and the atomic number is written in lower case, followed by the symbol of the element.

Iodine is a radio active element, used for many biological process.

It is the second largest - lived radioisotope of iodine.

The first is iodine-129.