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Write the electronic configuration of two elements X and Y whose atomic numbers are 20 and 17 respectively. Write the molecular formula of the compound formed when element X reacts with element Y. Draw electron-dot structure of the product and also state the nature of the bond formed between both the elements.

 

 

 

 
 
 
 
 

Answers (1)

Electronic configuration of X = 2,8,8,2

Electronic configuration of Y = 2,8,7

Molecular formula :

x^{+2}+2y^{-1}=xy_{2}

X has two extra electrons hence X has +2 valency Y needs 1 electron to be stable hence Y has -1 valency.

Type of bond - Ionic Bond

Posted by

Priyanka Kumari

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