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An atom 'A' belongs to IIIA group and another element 'B' belongs to VIIA group. The formula of the compound formed is |
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Answer» AB₃Explanation:For Atom A:Atom A belongs to group III A. So, the element will have a valency of +3. This INCLUDES all ELEMENTS that comes under the Boron in periodic table.For Atom B:Atom B belongs to group VII A.So, the element will have 7 electrons in its outermost shell which means that its valency is -1.This includes all elements that comes under Fluorine in periodic table.From the valencies of atom A and B, it can be found out that:★ A is a metal (because of POSITIVE valency)★ B is a non-metal (because of negative valency)The formula of the compound formed will be:【AB₃】 |
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