How many pairs of electrons can the f orbital have?

The f orbital can hold a maximum of 14 electrons, which is equivalent to 7 pairs of electrons. This is because each f orbital can contain a maximum of 2 electrons per sublevel, and there are 7 different f orbitals (f_x, f_y, f_z, etc.). Thus, the total capacity is calculated as 7 orbitals × 2 electrons/orbital = 14 electrons.