No, a proton of one element is not exactly the same as a proton of a different element.

Here's why:

* Protons are fundamental particles: They are not made up of smaller parts.

* Protons have a specific charge and mass: They carry a positive charge and have a specific mass.

* The identity of an element is determined by its number of protons: This number is called the atomic number.

While all protons have the same fundamental properties, they are part of different elements due to their different atomic numbers.

For example:

* Hydrogen (H) has 1 proton.

* Helium (He) has 2 protons.

The protons themselves are the same, but the *number* of protons defines the element.