The 3pz orbital is a type of atomic orbital in the third energy level of an atom. It has a specific shape and distribution of electrons around the nucleus. The orbital can be described in terms of its radial and angular nodes.

Radial Nodes:
- A radial node is a region of zero electron density that occurs along the radial direction (distance from the nucleus) of an atomic orbital.
- For the 3pz orbital, there is one radial node located at the midpoint between the nucleus and the outermost part of the orbital.
- This means that there is a region in the orbital where there is no electron density, and the probability of finding an electron is zero.

Angular Nodes:
- An angular node is a region of zero electron density that occurs along the angular direction (orientation) of an atomic orbital.
- For the 3pz orbital, there is one angular node located along the z-axis of the coordinate system.
- This means that there is a plane passing through the nucleus where there is no electron density, and the probability of finding an electron is zero.

Overall:
- The 3pz orbital has both radial and angular nodes, with one of each type.
- These nodes affect the shape and energy of the orbital, and can be used to explain chemical properties and reactivity of atoms and molecules.