Forms of visible light in order of increasing wavelength:. orange
green
violet
1) Shortest Wavelength
2) Second Longest Wavelength
3) Longest Wavelength

Explanation:

The wavelength of the different colours in the visible light is given as;

Orange - 590-620 nm

Green - 495-570 nm

Violet - 380-450 nm

1) Shortest Wavelength

This is Violet - 380-450 nm

2) Second Longest Wavelength

This is Green - 495-570 nm

3) Longest Wavelength

Orange - 590-620 nm

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

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