The chemistry expression "noble gas configuration" refers to the electron configuration of an element. The noble gas configuration for neon is denoted as 1s2 2s2 2p6.
The noble gas configuration notation for neon can be shortened for convenience to 2s2 2p6. What this notation shows is the electron distribution across orbitals and suborbitals. Electrons in the outermost orbital shell are called valence electrons and are the determining factor for the unique makeup of the atom. Neon is part of the "p-block" on the periodic table, meaning that elements in that block have electrons present in the p orbital of their atoms.