Question

An element X(2,8,2) combines separately with (NO3)- , (SO4)2- and (PO4)3- radicals. Write the formulae of the three compounds formed so.to which group of the periodic table does the element x belong? Will it form covalent bond or ionic compound ?why?
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Answer 1

ionic bond will be formed

Answer 2

Answer:

Explanation:

Mg2+ and

PO4^3- . The charge of Mg which is 2 will interchange with PO4 's charge which is 3(because in compound formation,the negative sign is always ignored) to yield the compound Mg3(PO4)2 .Take care