Please help:

Asked by nitishkrnehu09 | 1st Jan, 2018, 04:24: AM

Expert Answer:

Kα x-ray lines are given in table in terms of keV. 
 
0.75 A° = 16.531 keV and 1.5 Aº = 8.265 keV
 
I have noted the Kα1 and Kα2 lines of the elements given in the question and it is given below
 
Element          Kα1 (keV)        Kα2(keV)
Nb-41              16.6151           16.521
Cu-29              8.047                8.027
Ag-47              22.16                21.99
Co-27              6.93                  6.92
 
Then most likely P  = 29Cu  and Q  = 41Nb 

Answered by  | 1st Jan, 2018, 12:25: PM