Shape of 2p orbitals :
i. For p orbital,
l = 1.
For l = 1, ml = +1, 0, -1.
Thus,
p orbitals have three orientations.
ii. Each orbital has two lobes on the two sides of a nodal plane passing through the nucleus.
iii. Shape of 2p orbitals resembles a dumbbell.
iv. The size and energy of the three 2p orbitals are the same.
However,
Their orientations in space are different.
The lobes of the three 2p orbitals are along the x, y and z axes.
Accordingly,
The corresponding orbitals are designated as 2px, 2py and 2pz.
The size and energy of the orbitals in p subshell increase with the increase of principal quantum number.
Diagram :
