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Iridium

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Abstract

Iridium is the element No. 77 of the periodic table (period—6, group—9 (or VIIIb), relates to transition metals) with the ground state level 4F9/2 and electron configuration 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 4f 14 5s 2 5p 6 5d 7 6 s 2. The general oxidation states (numbers) of iridium in various chemical compounds are (–3), (–2), (–1), 0, (+1), (+2), (+3), (+4), (+5) and (+6); the oxidation states (+6), (+4), (+3) and (+2) are the most common; the radii of iridium are:

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    Igor L. Shabalin

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Shabalin, I.L. (2014). Iridium. In: Ultra-High Temperature Materials I. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-7587-9_9

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