Here's the question you clicked on:
ashna
can anyone explain me quantum numbers ?
n = the shell l (total nodes) = subshell which is 0...n-1 in which so s = 0 p = 2 d= 3... radial nodes are n-l-1
i want all the 4 quantum numbers explained with one of their main characteristic please !
what do u mean? im studying this right now too... ill give an example? lets say u have k which is potassium...1s2 2s2 2p6 3s2 3p6 4s1 the prinicple quantum number would be 4 because its form the 4th shell. the subshell would be n-1 radial nodes is n-L-1
http://www.youtube.com/watch?v=VAnZtvYG51c check this out it definitely helps
i know this one , what am asking is for the simple defenition of all 4 quantum nos , the principal , azimuthal , spin and magnetic quantum no's and their characteristic , i have a theory test that's y :|
so for telling the orientation of a particular orbit...we need a 3rd quantum no...that is magnetic quantum no eg px, py, pz l=1 for p so m = -l to +l m=-1,0,+1 this corresponds to px, py and pz
similarly l=2 for d sub-shell, so m=-2 to +2 m=-2,-1,0,+1,+2 so d orbital has 5 orientation
now the last one---spin quantum no u know that each of px, py and pz contain 2 electrons
okay dxy dyz dzx dz^2 and dx^2-y^2 right ?
so for distinguishing between the two electrons in an orbital (px, py or pz) , we need a fourth quantum number.
u can understand it by assume that electron is spinning clockwise or anticlockwise. so s= either+1/2 or -1/2
okay , how do i use it , like how do they ask question regarding spin quantum no ?
u will be asked...write all the quantum nos of an electron in any atom..
can yu give a qn and its answer ?
look for ur text book.