state and explain Aufbau principle
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As we pass from one element to another one of next higher atomic number one electron is added every time to the atom
The maximum number of electrons in any shell is 2n2
For example the first shell has 2 electrons and the second shell 8 electrons and the third shell has 18 electrons
The maximum number of electrons in any shell is 2n2
For example the first shell has 2 electrons and the second shell 8 electrons and the third shell has 18 electrons
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Explanation:
THE PRINCIPLE STATES THAT THE ELECTRONS ARE ADDED ONE BY ONE TO THE VARIOUS ORBITALS IN ORDEE OF THEIR INCREASING ENERGY STARTING WITH THE ORBITAL OF LOWEST ENERGY.
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