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Hund's Rule

why there are...

Question

why there are so many orbits in 3D model of soduim , chlorine etc.?

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Solution

Dear student!
3D-models are plotted to explain the existence of an atom in the three dimensional space. In case of sodium or chlorine they have valance electrons in third shell so all the orbitals till third shells are shown in the 3D-model of the elements.

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