Electronic Configuration Using Aufbau Principle
The electronic configuration using the Aufbau Principle for a few elements is discussed below:
Electron Configuration of Sulphur
Atomic Number of Sulphur is 16, i.e. it has 16 electrons
Now using the Aufbau Principle the electronic configuration of the Sulphur is written as,
[S] = 1s2 2s2 2p6 3s2 3p4
Electron Configuration of Nitrogen
Atomic Number of Nitrogen is 7, i.e. it has 7 electrons
Now using the Aufbau Principle the electronic configuration of the Nitrogen is written as,
[N] = 1s2 2s2 2p3
Aufbau Principle
Aufbau Principle is the basic method that tells us how the electrons are filled in the atomic orbital. According to the Aufbau Principle, the filling of the electrons in the ground state of an atom follow a basic pattern. This principle tells us that the electrons in the atomic orbital of any atoms are filled in the ascending order of their energy and for finding the energy of the atomic orbital they follow the “n+l” rule.
In this article, we will learn about Aufbau Principle, Features of the Aufbau Principle, its exceptions and limitations in detail.