In the predicted electron configuration of Molybdenum (Mo), how many electrons are in the 4d subshell?
2. How many electrons are in the 4d subshell of the Molybdenum (III) ion?
1 answer
You need to review the Aufbau Diagram. It shows the order of electron entry for the building up process. For Mo, it is in the 5th row of the periodic table => Mo:[Kr]5s^24d^4 ... for Mo(+3), ionization of transition metals always starts from the valence level (the highest principle Quantum Number => 5) then moves into the 4d level. Mo(+3):([Kr]4d^2)^+3.