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CBSE Class 10 Answered

How to find the period or group number of an element given ?
Asked by jennithdvk | 04 Dec, 2018, 06:32: PM
answered-by-expert Expert Answer
 
If the atomic number is given from the electronic configuration we can find the position of the element in the periodic table.
 
Example:
 
The atomic number of carbon is 6.
 
Electronic configuration: (2,4)
 
The number of valence electrons gives the group number and number of shells gives period.
 
So it corrosponds to group 4 and period 2.
 
Answered by Varsha | 05 Dec, 2018, 11:25: AM

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