copper group
(inorganic chemistry) Group 11 of the periodic table, comprising copper, silver, gold and roentgenium
(chemistry) Any cation, of general formula X³⁺, formed by the removal of three electrons from a neutral species
A town and borough of Trinidad and Tobago.
A person who attempts to catch shellfish. / A person whose profession is catching shellfish.
その触媒は周期表の11族元素（銅、銀、金、レントゲニウム）で作られており、カップリング反応で予想外に高い活性を示した。
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