metal
A Swedish plano-convex ingot once thought to be from the Bronze Age was revealed through chemical and isotopic testing to belong to the Iron Age.
November 24, 2025
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A Swedish plano-convex ingot once thought to be from the Bronze Age was revealed through chemical and isotopic testing to belong to the Iron Age.
In contrast to transition elements, s- and p-block metal compounds that coordinate carbon monoxide (CO) under near-ambient conditions are elusive. Here, we report an isolable,