Final answer:
The maximum number of energy levels needed to hold all the electrons in element 118 is 3.
Step-by-step explanation:
The maximum number of energy levels needed to hold all the electrons in an element is determined by the atomic number of the element. Based on the current periodic table, the atomic number of element 118 is the highest known. Each energy level can hold a certain number of electrons, depending on the number of orbitals at that energy level. For example, the first energy level can hold a maximum of 2 electrons, the second energy level can hold 8 electrons, and the third energy level can also hold 8 electrons.
Therefore, the maximum number of energy levels needed to hold all the electrons in element 118 would be 3 (the first level holds 2 electrons, the second level holds 8 electrons, and the third level holds 8 electrons).