write a short note on aufbau principles
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The Aufbau principle dictates the manner in which electrons are filled in the atomic orbitals of an atom in its ground state. It states that electrons are filled into atomic orbitals in the increasing order of orbital energy level. According to the Aufbau principle, the available atomic orbitals with the lowest energy levels are occupied before those with higher energy levels.
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Aufbau principle
Aufbau is a German word which means building up or construction
Statement : In the building up of atoms the electrons enters into the various orbitals in the increasing order of the their energies
The orbital with the lower energy is filled up first followed by the orbitals of higher energy
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