Question

Which orbital has more energy 5s or 4f

Answer 1

ANS :         Even though 5s orbitals have a higher principal quantum         number than 4d orbitals, (n = 5 compared to n = 4), they're actually lower in energy. As a result, 5s orbitals are always filled before 4d orbitals. ... 5s, 5p, and 6s orbitals are all lower than 4f orbitals.