Question

An element ‘m' with electronic configuration (2, 8, 2) combines separately with (no3)−,(so4 )2− and (po4 )3− radicals. write the formula of the three compounds so formed. to which group and period of the modern periodic table does the elements ‘m' belong? will ‘m' form covalent or ionic compounds? give reason to justify your answer.

Answer 1

element M is Magnesium
it belongs to 12th group and 3rd period
it forms ionic bond because it loses 2 electrons.
it forms Mg(NO3)2___Magnesium nitrate
it forms MgSO4___Magnesium sulphate
it forms Mg3(PO4)2___Magnesium Phosphate