The long form of periodic table is nothing but just a graphical representation of _____ principle.
A
Aufbau
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B
Hunds
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C
Pauli exclusion
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D
Wave mechanical
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Solution
The correct option is A Aufbau In modern periodic table, it indicates the filling of electrons in different sub energy levels like s, p, d, f, where the electron enters into the minimum energy level first, which is called aufbau principle.