Final answer:
The concept referring to the probability of electron location in various energy levels or shells of an atom is known as the electron configuration. The correct answer is (a) Electron Configuration.
Step-by-step explanation:
The electron configuration of an element refers to the arrangement of electrons within its orbitals and energy levels. It provides information about the distribution of electrons in different shells around the atomic nucleus.
The probability of finding an electron in a specific energy level or shell is described by the electron configuration. This arrangement is crucial in understanding the organization of electrons in an atom, and it plays a fundamental role in the chemical behavior of elements.
Therefore, the correct term for the probability of electron location in different energy levels is "electron configuration" (option a).