InterviewSolution
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InterviewSolution
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to findelectronicconfiguration, groupnumberandperiodnumberof anelementfromitsatomicnumberpotassiumatomicnumber19 |
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Answer» Solution :Itselectronicconfiguarationis : ` 1s^2| 2s^12p^6 | 3s^43p^4| 4S ^2= ( 2,8,8,1)` thismeansit contains2 ELECTRONSIN K - shell, 8electronsin L shell8 electronsinM shelland1 electron in Nshell . Itsperiodnumber= Noof shells=4 Itsgroupnumber= no.of valenceelectrons= 1 [Ifnumberof valenceelectronsis 1or2groupnumber= noofvalenceelectrons . |
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