What is a transition element with five d-block electrons in energy level 4?
Possible answers are Mn
Manganese 25 has a ground state electron configuration of
This gives Manganese 5 electrons in the d block.
Chromium 24 has a ground state electron configuration of
Chromium will hybridize one of the 4s electrons into the 3d block to achieve greater stability and ability to form bonds, giving it
This gives Chromium 5 electrons in the d block
Vandium 23 has a ground state of electron configuration of
Vandium can hybridize both of the 4s electrons ( not near as common as Chromium hybridizing. ) giving V
This gives Vandium 5 electrons in the d block.
Mn is the most obvious answer to the element with 5 d block electrons but Cr and V are also possible answers.
Chromium and manganese.
Each period on the periodic table corresponds to the primary energy level,
This is a website that gives the ground state electron configurations for all of the elements.
If you need a printable periodic table with the ground state electron configurations of the elements, check these sites.