Answer
a) $Sn^{2+}$
b) $I^{-}$
c) $ Mn^{2+}$
d) $ Pb^{2+}$
e) $Se^{2-}$
Work Step by Step
Symbol of the ion is written by the symbol of the element followed by the no. of electron the element loses or gains written at the superscript with a positive sign denotes loss of electrons or a negative sign denotes gain of electrons.
