What is the electron configuration of d-block ions, for example V+?
EXAMPLE: TYPICAL TRANSITION METAL
If we start from vanadium atom, it is easier to think about.
Using the noble gas configuration, we reference the previous noble gas, which is
In fact, the orbital potential energies are
The ionization can be written as follows:
#"V" -> "V"^(+) + e^(-)#
Thus, the electron configuration for
but it is not reasonable to predict:
The actual observed result is
EXAMPLE: ATYPICAL TRANSITION METAL
In general you should be asked for electron configurations of transition metals that follow the trend of the
For instance, yttrium has the electron configuration
and in fact, the
And we indeed see that if we look here for reference.