An element A belongs to IIA group and another
element B belongs to VIA group. The compound
formed between A and B contains.
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Answer:
An element of group IIA has two electrons in the outermost shell which it can lose to achieve inert gas configuration. Hence, its valency is 2. It forms A
2+
ions.
An element of group VIA has 6 electrons in its outermost shell. It needs two more electrons to attain inert gas configuration. Hence its valency is 2. It forms B
2−
ions.
A compound formed between them is AB
A
2+
B
2−
A
++
B
−−
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