# What is the correct electronic configuration of darmstadtium?

Some of the places, the electronic configuration of darmstadtium ($$\ce{Ds}$$) is given as $$\mathrm{6d^9 7s^1}$$ while at some other places, it is $$\mathrm{6d^8 7s^2}$$. Which among the two is correct?

• Electron configurations are merely fictional or just a book keeping work. Don't worry too much about it. Find me a chemist who can tell you how to experimentally determine the electron configuration of sodium. Forget about Ds. – M. Farooq Jul 12 '20 at 15:54
• They should not be asking such questions whose answers they do not know themselves. As I said, ask them how did someone experimentally determine the electron configuration of a simple element such as Na (Z=11)? I bet nobody can answer because I have been searching for this answer for decades without any decent response. – M. Farooq Jul 12 '20 at 17:32
• Anyway, what is the use of such a question ? Up to now, the number of Ds atoms produced in the world is increasing with the time, but it is still much lower than 100. And they all live less than 10 seconds, often less than 1 millisecond... – Maurice Jul 12 '20 at 18:13
• Sir could you please elaborate we cannot determine the electron configuration? – Neerav Singla Jul 13 '20 at 5:13
• According to Wikipedia, the electronic configuration of darmstadtium is predicted to be [Rn] 5f14 6d8 7s2. – huzaifa abedeen Nov 29 '20 at 14:53