Saved Bookmarks
| 1. |
Information -1 : Principlal quantun number 'n' is defined as 1, 2, 3…. Information -2 : Azimaathal quantum number 'l' is defined as 0 to (n + 1) in integral steps of 1 Information -3 : Magnetic quantum number 'm' is defined as - l //2 to + l//2 Information -4 : Spin quantum number 's' has five possible values -2, -10, +1, +2 Information -5 : The sub-shell corresponding to l = 1, 2, 3, 4, 5..... designated as P, Q, R, S, T, U.... respectively. Information -6 : The values of m for a given value of l give the number of orbitals in a sub-shell Information -7 : The principles for filling electron in teh shells remains unchanged. On the basic of above informations, answer the following questions. The second period would begin with - |
|
Answer» Phosphorus `{:(n = 1,n = 2,n = 3,),(l = 0"," 1"," 2,l = 0","1","2","3,l = 0","1","2","3","4,):}` Possible subshells - `{:(,1P,1Q,1R,2P,2Q,2R,2S,3P,3Q........,),(n + l =,1,2,3,2,3,4,5,3,4........,):}` Inceasing order of energy Each orbital has 5 electrons. `{:(,1P,1Q,2P,1R,2Q,3P,2R........),("TOTAL electrons",5,10,5,15,10,5,):}` `{:("Type of subshell",1P,1Q,2P,1R,2Q,),("Number of electrons accomodate by the given subshell",10,15,10,20,15,):}` Sol.(i) `II^(nd)` period will be start from atomic number 16 (Sulphur) Sol. (ii) LAST electron from `Z = 50` to `Z = 65` will enter in 2R subshell Sol. (iii) For T subshell `l = 4`. Number of possible VALUES of `m = 5`, Total electron `= 25` |
|