What is the Aufbau Principle?

What is the Aufbau Principle?The Aufbau Principle states that in the ground state of an atom, an electron enters the orbital with lowest energy first and subsequent electrons are fed in the order of increasing energies. The word ‘aufbau’ in German means ‘building up’. Here, it refers to the filling up of orbitals with electrons.

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Good Friday

Good Friday: Christian holiday commemorating crucifixion of Jesus

Good Friday is celebrated in April-May by the Christians in India to commemorate the crucifixion …