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下载化学应用程序以查看有关化学元素的更多信息:
下载于App Store下载于Mac App Store穿上它Google Play原子序数43族VIIB元素周期5质量98拉丁名Technetium电子排布[Kr]4d5 5s2氧化态-3, -1, 0, 1, 2, 3, 4, 5, 6, 7