An element ‘X’ with electronic configuration (2, 8, 2) combines separately with two
radicals, (NO3)– and (SO4)2–.
(i) Is ‘X’ a metal or a non-metal ? Write the nature of its oxide.
(ii) Write the formula of the compounds of ‘X’ formed by the combination of these
radicals. Are these compounds covalent or electrovalent ?
