* 92 protons: This is the defining characteristic of uranium. The number of protons determines the element.

* 92 electrons: In a neutral atom, the number of electrons is equal to the number of protons.

* 146 neutrons (for the most common isotope, Uranium-238): The number of neutrons can vary, creating different isotopes of the same element. Uranium-238 is the most common isotope, with 146 neutrons.

Note: There are several isotopes of uranium, each with a different number of neutrons. For example, Uranium-235 has 143 neutrons.