清楚明确
发表于 2025-3-21 17:17:33
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易改变
发表于 2025-3-21 21:33:22
Rhodium and iridium,of conventional complexes as well as those of π-bonding ligands. Both metals exhibit an extensive chemistry, principally in the +3 oxidation state, with +1 also being important, and a significant chemistry of iridium +4 existing. Few compounds are known in the +2 state, in contrast to the situation
incision
发表于 2025-3-22 00:43:18
Palladium and platinum,bility. Platinum occurs naturally as the element, generally with small amounts of the other platinum metals. It was used as a silver substitute by Colombian Indians and first observed there by Ulloa (1736), who called it platina del Pinto (‘little silver of the Pinto river’) but the first sample was
史前
发表于 2025-3-22 07:00:06
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cornucopia
发表于 2025-3-22 10:22:29
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condemn
发表于 2025-3-22 14:23:45
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condemn
发表于 2025-3-22 19:39:41
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heartburn
发表于 2025-3-23 00:53:18
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gene-therapy
发表于 2025-3-23 03:09:15
Quantum Theory of Many-Body Systemsbility. Platinum occurs naturally as the element, generally with small amounts of the other platinum metals. It was used as a silver substitute by Colombian Indians and first observed there by Ulloa (1736), who called it platina del Pinto (‘little silver of the Pinto river’) but the first sample was
本土
发表于 2025-3-23 08:34:45
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