What is the longhand configuration xenon?

The longhand (or full) electron configuration for xenon (Xe), which has an atomic number of 54, is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶. This configuration indicates that xenon has a complete outer shell of electrons, making it a noble gas with low reactivity.