The dand fblock elements - Result Question 32
####32. Which one of the following elements shows maximum number of different oxidation states in its compounds?
[1998]
(a) $Eu$
(b) $La$
(c) $Ge$
(d) $Am$
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Solution:
- (d) $Eu-+2,+3$
$ La-+3 $
$ \begin{aligned} & Gd-+3 \\ & Am=+2,+3,+4,+5,+6 \end{aligned} $