Electron Configuration of Chlorine-35 the same or different as Chlorine-37?

Answer 1

They're the same, they both have 17 protons and 17 electrons. The only difference is that Cl-35 has 18 neutrons, whereas Cl-37 has 20. Both have the electron configuration of [Ne] 2s2 3p5

Answer 2

The electron configuration of chlorine-35 and chlorine-37 is the same. Chlorine has an atomic number of 17, with the electron configuration of 1s2 2s2 2p6 3s2 3p5. The isotopes differ only in their number of neutrons, not in their electron arrangement.