The LUMO of 1,3-pentadiene has how many electrons in its excited state?
A)1
B)2
C)3
D)4
E)0

Question

Quizplus · Accepted Answer

The LUMO (Lowest Unoccupied Molecular Orbital) of 1,3-pentadiene, or any molecule, is by definition unoccupied in the ground state. When discussing its excited state, it's important to clarify that the LUMO itself does not contain electrons; rather, electrons from lower energy levels (like the HOMO, Highest Occupied Molecular Orbital) may be excited to the LUMO. Therefore, in its excited state, the LUMO may accommodate electrons, but initially, it has 0 electrons.

The LUMO of 1,3-Pentadiene Has How Many Electrons in Its