electron configuration of cobalt 2?

Electron Configuration for Co, Co2+, and Co3+ (Cobalt and Cobalt Ions)

Cobalt’s electron configuration in the ground state is [Ar] 4s2 3d7. 2 electrons are removed (from the 4s subshellsubshellEach s subshell holds at most 2 electrons. Each p subshell holds at most 6 electrons. Each d subshell holds at most 10 electrons. Each f subshell holds at most 14 electrons. Each g subshell holds at most 18 electrons.https://en.wikipedia.org › wiki › Electron_shellElectron shell – Wikipedia) and leaves you with Co2+ as [Ar] 3d7.

A step-by-step description of how to write the electron configuration for Cobalt (Co).