I was given a question where I had to write the orbital notation of Osmium (Os) and I got it wrong.
6s2 --> ↑↓ 4f --> ↑↓↑↓↑↓↑↓↑↓↑↓↑↓ 5d6 --> ↑↓↑↓↑↑
The arrows above are my answer. What did I do wrong? I think it might be my answer to 5d6 but I am not sure. How many unpaired electrons are in Osmium?