Which of the following is uncharacteristic for the elements of the first transition series?
A)an inner core of electrons in the argon configuration
B)two 4s electrons for eight elements,and one 4s electron for Cr and Cu
C)a number of 3d electrons ranging from one for Sc to ten for Cu and Zn
D)except for Sc and Ti,only minor variation in atomic radii
E)only one possible oxidation state per element,different for each

Question

Quizplus · Accepted Answer

Elements in the first transition series typically exhibit multiple oxidation states, not just one. This is due to the energy levels of the 3d and 4s orbitals being very close, allowing for variable electron configurations.

Which of the Following Is Uncharacteristic for the Elements of the First