3.
Explain any two of the quantum numbers
Réponse: 1. Principal quantum number: This shows the main energy level of the electron. It is denoted by the symbol,n. For a given value of n, the number of orbitals it can have it given as n2. The number of electrons that a given n can take is 2n2.
2. Azimuthal quantum number: This describes the shape of the orbital in which the particular electron is found. It is denoted by the symbol, l and has values ranging from 0 to (n-1). For n= 0,1,2,3 etc, they are designated with s,p,d,f orbitals having the shapes, spherical,dumbbell,clover shape etc.
3. Magnetic quantum number:This shows the orientation of the orbital in which that particular electron is found. It is also denoted by Ml and has values ranging from -l to +l.
4. Magnetic spin quantum number: This shows the direction of spin of the electron in it\'s suborbital. It has only two values i.e,+_0.5