Orbit;
1-Orbit is a well defined circular path around the nucleus in which an electron revolves2-it represents the planar motion of an electronorbits gives a definite path of an electron and this concept is not in accordance with the uncertainty principle3-all orbits are circular4-orbits do not have directional characteristics5-an orbit can accommodate electrons equal to 2n^2 where n represents the principle quantum number. *ORBITAL*
1-it represents the region in space around the nucleus in which the probability of finding the electron is maximum.2-It represents the three dimensional motion of an electron around the nucleus3-orbital does not specify definite path and according to this concept,electron may be any where in this region .this concept is in uncertainty principle4-orbitals have different shapes .For example,s-orbital is spherical, p-orbital is dumb bell shapedexcept s=orbitals , all other orbital have directional characteristis5-an orbital cannot accommodate more than two electrons.

Orbits are circular in shape. An orbit indicates an exact position of an electron in an atom. Orbital's have different shapes.It represents the three-dimensional motion of the electron round the nucleus.An orbital cannot accommodate more than two electrons like 1s , 2s , 2Px ,2Py .....