Ghow many protons, neutrons, and electrons are contained in the atom with the given atomic number and mass number? z = 36, a = 92

A will equal the mass number. The mass number consists of the sum of protons and neutrons. 
z= the number of protons. Therefore, there are 36 protons.
Furthermore, the mass number will be a=92-36. We are subtracting the amount of protons from the mass number to find the number of neutrons. 
In other words a=56. So, there are 56 neutrons.