| Period | Group | |
|---|---|---|
| ◀ 8 ▶ | ||
| 1 | ||
| 2 | ||
| 3 | ||
| 4 |
26
Fe
Iron
[Ar] 4s2 3d6
|
|
| 5 |
44
Ru
Ruthenium
[Kr] 5s2 4d6
|
|
| 6 |
76
Os
Osmium
[Xe] 6s2 4f14 5d6
|
|
| 7 |
108
Hs
Hassium
[Rn] 7s2 5f14 6d6
|
Tip: Hover over an element to compare its electron configuration to that of the element below it.