Question

Determine whether the metal in the ionic compounds Cr2O3, NaI, CaBr2 and SnO form only one type of ion or more than one type of ion and name the compound accordingly.

Answer 1

Cr2O3 => Chromium (iii) oxide . here the Chromium is a metal and the compound is the chromium oxide here the compound is having the chromium metal and it is showing the only one type of the ion i.e chromium +3 ion only

NaI => sodium(i) iodide and here the sodium metal is showing the +1 charge i.e it can shows only Na+ ion

CaBr2 => Calcium (ii) bromide here the metal is Calcium is showing the Ca2+ ion and the calcium is showing the only one type ion i.e Ca2+

SnO => Tin(ii)oxide and here the tin showing the Sn2+ ion only

in the all above ionic compounds the metal shows the only one ion because the compounds are forms the only one type of ions when dissolves in water