Atoms of eight elements A, B,C,D,E,F,G and H have the same number of electronic shells but different number of electrons in their outermost shells. It was found that elements A and G combine to form an ionic compound. This compound is added in small amount to almost all vegetable dishes during cooking. Oxides of elements A and B are basic in nature while those of E and F are acidic. The oxide of D is almost neutral.
Based on the information given below answer the following questions:
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1) They all belong to 3rd period
2)ionic in nature
3)A and B are metals as they form basic oxides
4)element H
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