Question

what is arrow \b\ pointing to in the electron cloud model? electron energy level nucleus atom

Explanation:

In the electron - cloud model, electrons are depicted as being in a cloud - like region around the nucleus. Energy levels are regions where electrons are likely to be found, the nucleus is at the center of the atom, and an atom is the whole entity. If the arrow is in the electron - cloud area, it is most likely pointing to an electron.

Answer:

electron