# Problem: Give the nuclear symbol for the isotope of phosphorus for which A = 31?Enter the nuclear symbol for the isotope  .

###### FREE Expert Solution

We’re asked to give the nuclear symbol for the isotope of phosphorus for which A = 31.

Recall that the symbol for an element or ion is as follows:

The nuclear symbol for isotopes is also written in the same manner.

From the periodic table, we can see that the atomic number of Phosphorus, P is 15 (Z = 15)

Recall that A stands for the atomic mass or mass number.  We’re given the mass number, A = 31.

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###### Problem Details
Give the nuclear symbol for the isotope of phosphorus for which A = 31?
Enter the nuclear symbol for the isotope  .