Hexagonal crystal system
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| May 2024 |
Promethium
A promethium coordination complex with neutral PyDGA ligands was first characterized in aqueous solution, marking a significant advancement in understanding the chemical properties of this rare element.
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| March 11 2011 |
Zirconium
Zirconium's reactivity with water was critically demonstrated during the Fukushima I Nuclear Power Plant disaster. The reaction between zirconium alloys and water at high temperatures led to hydrogen production, resulting in explosions that severely damaged reactors 1, 2, and 3 after cooling systems failed during the earthquake and tsunami.
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