Neutrons and *blank* are found in the nucleus of an atom

Protons.

Explanation:

The different structure of the atoms are discovered by the different scientists to explain the atom structure. Three sub atomic particles of the atom are electron, proton and neutron.

The electrons revolve around the nucleus in the fixed orbit. The protons and neutrons are present inside the nucleus of the atom. The protons and electrons are equal in the atom.

Thus, the answer is proton.  

answerall of the above;

i believe the answer is pupils are unequal and non-reactive

the pupil of both eyes has different size, so you could say the pupil is unequal. pupil has muscle that makes it able to constrict itself according to the light intensity. when the doctor direct their flashlight to the eye, pupil should be constrict to reduce the light intensity. if the pupil doesn't change their diameter, it is called unresponsive.