* Atomic Mass: This represents the total number of protons and neutrons in the nucleus.

* Atomic Number: This represents the number of protons in the nucleus.

Calculation:

1. Find the number of neutrons: Subtract the atomic number from the atomic mass.

* Number of neutrons = Atomic mass - Atomic number

* Number of neutrons = 36 - 25 = 11

Answer: There are 11 neutrons in the nucleus of this atom.