Question

having problems staying logged in or are you experiencing issues? please visit our troublesho... an isotope has an atomic number of 53 and contains 76 neutrons. construct the symbol for the isotope. tap on the parts of the symbol to enter or change the contents.

Explanation:

Step1: Find the mass number

The mass number ($A$) is the sum of the atomic number ($Z$) and the number of neutrons ($n$). Given $Z = 53$ and $n = 76$, so $A=Z + n=53 + 76 = 129$.

Step2: Identify the element

The atomic number $Z = 53$ corresponds to the element iodine (I).

Step3: Construct the isotope symbol

The isotope symbol is written as $^A_Z\text{X}$, where $A$ is the mass number, $Z$ is the atomic number, and $\text{X}$ is the element symbol. Substituting the values, we get $^{129}_{53}\text{I}$.

Answer:

$^{129}_{53}\text{I}$