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ICSE Class 8 Answered

how do identify between 2 valencies  
Asked by aroranikita451 | 06 Aug, 2020, 05:04: PM
answered-by-expert Expert Answer

The valence electrons are the electrons in the last shell or energy level of an atom.
For example, all the elements in the first column all have a single valence electron (H, Li, Na, K, etc.). 
 
For more information, please click on the below link:
 

Answered by Ramandeep | 06 Aug, 2020, 06:33: PM
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