Answers

2015-02-24T21:35:27+05:30
Highest oxidation state is +9 and of Ir (Iridium). atomic number 77
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2015-02-24T22:21:07+05:30
Iridium has highest oxidation state in d block elements. It's Atomic number is 77.
It's oxidation state isĀ  +9..
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