The Scientists Dilemma!
There are two Scientists whose proposed their respective periodic tables based on Aufbau Principle
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Scientist 1 proposed his periodic table by following Aufbau principle.
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Scientist 2 proposed his periodic table by not following Aufbau principle.
True or False ?
is placed in of Scientist 1 periodic table whereas it is placed in in Scientist 2 periodic table.
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When one is not following Aufbau principle the electrons get filled in the order :
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1 solution
When we follow Aufbau principle the elctronic configuration of K − 1 9 will be : 1 s 2 , 2 s 2 , 2 p 6 , 3 s 2 , 3 p 6 , 4 s 1 Here, the differentiating electron (or the last electron) is entering into s − o r b i t a l so potassium will be placed in s − b l o c k of the periodic table.
When we do not follow Aufbau principle the elctronic configuration of K − 1 9 will be : 1 s 2 , 2 s 2 , 2 p 6 , 3 s 2 , 3 p 6 , 3 d 1 Here, the differentiating electron (or the last electron) is entering into d − o r b i t a l so potassium will be placed in d − b l o c k of the periodic table.
Hence, both the scientists proposals are correct.