All Students Notes

  Question 1: Which quantum number is also called sub-shell quantum number? Answer. The Azimuthal quantum number describes the shape of sub-shell, therefore it is  also called sub-shell quantum number.  It is denoted by the symbol '  ℓ ', Its values are 0, 1, 2, 3.............. n-1. It means its values depends upon the n value. For n = 3,  ℓ  values are 0, 1,2.  For  ℓ  = 0,  sub-shell is s, for   ℓ  = 1 subshell is p sub-shell and for    ℓ  = 2, sub-shell is p.   Question 2: What is difference between orbit and orbital?    Answer Question. What is the relationship between: a, energy and wavelength  b. frequency and wave length Answer. Energy and wavelength The energy of radiation is inversely proportional to its wave length.  Mathematically,  E  ∝  1/ λ   E = hc/ λ   Where, E = Energy of radiation λ = Wave length of any light radiation c = speed of l...