Question

An atom x has two electronrd more than noble gase write its sulphate

Answer 1

X has three electrons more than noble gas configuration 

so,it will form X3-         

formula with sulphate is X₂(SO4)₃

nitrate  is X(NO3)₃

phosphate is XPO4

Carbonate is X₂(CO3)₃

hydroxide is  X(OH)₃