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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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lf the ionisation energy of Na is 495.8 kJ mol-1, the electron affinity of Cl is 349.4 kJ mol-1 and lattice energy is 776 kJ mol-1, the true statement for the formation of ionic bond
in NaCI is

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