In the wave mechanical model of an atom, electrons are not located at specific points like in the Bohr model. Instead, they exist in electron clouds, also called orbitals, which represent the probability of finding an electron at a given location.

Here's a breakdown:

* Orbitals: These are three-dimensional regions around the nucleus where there is a high probability of finding an electron. Each orbital has a specific shape and energy level.

* Electron Cloud: The electron cloud is a fuzzy, cloud-like region that represents the overall distribution of electrons around the nucleus. It's a visual representation of the probability of finding an electron at different points in space.

Key Points:

* No definite paths: Electrons do not follow fixed paths or orbits around the nucleus like planets around the sun.

* Probabilistic nature: The wave mechanical model describes the probability of finding an electron at a particular location, not its exact position.

* Quantum numbers: Orbitals are described by a set of four quantum numbers (n, l, ml, and ms) that determine their size, shape, orientation in space, and spin.

Therefore, the wave mechanical model represents electrons as existing within a region of space around the nucleus where their location is described by probabilities rather than fixed positions.