**Schrodinger Wave Equation**:

In 1926, Erwin Schrodinger, a Austrian Physicist, developed an equation, which is given below and is called Schrodinger equation.

Where E = total energy of electrons

V = potential energy

ψ = a wave function (amplitude of wave)

ψ^{2} = probability of finding electron

According to Schrodinger electron shows a wave like motion and they form standing wave in three dimensional spaces around the nucleus.

Thus atomic orbital can be defined as, “*A definite region in the three dimensional space around the nucleus, where there is high probability of finding an electron of specific energy E is called atomic orbital*.”

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