how does the electronic configuration of an Atom related to its position in the modern periodic table?give one example
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The electronic configuration of an element tells us : 1) The number of valence (i.e outermost) electrons and 2) The number of shells.
The position of an element in a certain period will depend upon the number of shells. For eg, the electronic configuration of Magnesium is 2, 8 , 2. The number of shells is 3 and hence, it belongs to the third period.
The position of an element in a certain group will depend upon the number of valence electrons. For eg, Carbon has the electronic as 2,4. Thus, it belongs to the fourteenth group.
Hence, the electronic configuration decides the position of an element in the periodic table.
Cheers,
NISHTHA.
The position of an element in a certain period will depend upon the number of shells. For eg, the electronic configuration of Magnesium is 2, 8 , 2. The number of shells is 3 and hence, it belongs to the third period.
The position of an element in a certain group will depend upon the number of valence electrons. For eg, Carbon has the electronic as 2,4. Thus, it belongs to the fourteenth group.
Hence, the electronic configuration decides the position of an element in the periodic table.
Cheers,
NISHTHA.
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let see electronic configartion of sodium which can be represent by 2.8.1 i.e in valence it contain 1 so it no. of group is on is 1 but if the valence is more than 4 then minus the valence electron by 8...so it can be concluded that it can be easily represent no of group from electronic configaration.
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