A sub shell with l = 2 can take up a maximum of:
5 electrons
3 electrons
8 electrons
10 electrons
Hint: l = 0, 1, 2, 3
Orbitals s p d f
l = 2 corresponds to d orbitals which can take upto 10 electrons.
In acid solution, the reaction MnO4- → Mn2+ shows: