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Ir - 銥

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原子序数77
VIIIB
元素周期6
质量192.217
拉丁名Iridium
电子排布[Xe]4f14 5d7 6s2
氧化态-3, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9