3D - 2

What element is represented by the electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 3d^5 4s^1?

Public Comments

1. The element that ends in 3d5 4s1 is chromium, it's one of two elements in the period 4 transition metals that doesn't have a complete 4s shell (4s2) the other being copper which ends as 3d10 4s1