Answer:
The proton number is found in the periodic table of elements.
Explanation:
<em>The atomic number </em>is the number that defines each element in the periodic table. It accounts on the number of protons in a nucleus of an element, as well as the number of electrons. It is marked by the letter Z.
It should be distinguished from the mass number which is the total number of protons <em>and </em>neutrons inside a nucleus.
The experiments revealed about a dopamine related reward pathway in humans is that the stimulated patients can become calmer and experience pleasure and reward deficiency syndrome. The stimulated patients can become calmer and he can experience pleasure and reward deficiency syndrome.
I'd say D. expert power because expert power is when an employee ( or in your case the teacher) has a high set of knowledge/skills that other employees do not posses. Which by the information above about this teacher's PhD and thier experience, I assume that this teacher must have expert power.
