Answers

2015-05-23T13:37:34+05:30
K = 2
L = 8
 so if both are full then the total no. of electrons will be 10 in an atom
hence,10 electrons

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2015-05-23T13:44:31+05:30
IF K AND L SHELLS OF AN ATOM ARE FULL,THEN :
                   IN K SHELL:THIS IS FIRST SHELL AND ONLY 2 ELECTRONS ARE PRESENT. 
                   IN L SHELL: THIS IS THE SECOND SHELL AND ONLY 8 ELECTRONS ARE PRESENT.[BY USING FORMULAE 2N  SQUARE].
                           TOTAL:2+8=10 
                           TOTAL ELECTRONS=10
                                            
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