Electrovalent or Ionic bond

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By Expert Faculty of Sri Chaitanya
Question

Two elements A and B have following electronic configuration

A=1s22s22p63s23p64s2B=1s22s22p63s23p3

 It is expected that they form a compound  AxBy then sum of x and y is : (Ignore charge only observe the value)

Easy
Solution

A3B2 by observing the electronic configuration we can see that A is Calcium and B is phosphorous.


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