Electrons in an atom are most likely to be found in regions called orbitals. These orbitals are not fixed paths but rather a cloud-like region around the nucleus where the probability of finding an electron is highest.
The shape and size of these orbitals can vary: for instance, s-orbitals are spherical, while p-orbitals are shaped like dumbbells. The arrangement of these orbitals is governed by principles of quantum mechanics, particularly the concept of probability density. Instead of being pinpointed at a specific location, electrons exist in these probabilities, which means they are more likely to be found in certain areas around the nucleus based on their energy levels and the type of orbital they occupy.
In summary, while we cannot say an electron is at a single point, we can confidently state that it is most likely found within these defined orbital regions surrounding the nucleus of an atom.