Sun March 20, 2011 By: Shrikanth Rao
according to the octet law, each shell can fill a maximum of 8 electrons, but if this is true, then the number of shells in one period will increase by one .
ex- potassium has the configuration-2,8,8,1-4 shells

urgent question related to the periodic table.

Expert Reply
Mon March 21, 2011
The period of Zn and K are same 4th period.
The electronic configuration of Zn is 2,8,18,2. 
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