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 Orbital is a space where an electron moves for a longer time or an atom in which there is maximum probability of finding the electron is known as Orbital.

                                                          ( or )

Orbital is a three dimensional region around the nucleus where in which there is a maximum propability of finding the electron is called as orbital.

  • It can accomadate maximum of two electrons.
  • It is also called as sub-shell
  • Atomic orbitals has different three dimensional shapes.Based on the shape, they are mainly of four types.

                  1.s-orbital possess spherical shape and can accomodate maximum of 2 electrons

                  2.p- orbital possesses dumb bell shape and can accomodate maximum of 6 electrons.

                  3.d-orbital possess double dump bell and can accomodate maximum of 10 electrons.

                  4.f-orbital possess complex structure and can accomodate maximum of 14 electrons.

s, p, d, f are derived from spectroscopic terms such as sharp, principal, diffuse and fundamental respectively.

  • In an atom, the number of sub shells are equal to shell number.

Each shell consists of subshells has specific energy with slight difference.

 

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