scandium-45
(Canada) The meeting place of a provincial legislature.
(mathematics) A real algebraic integer greater than 1 all of whose Galois conjugates are less than 1 in absolute value.
(Indo-European studies) A sound law describing the voicing of voiceless fricatives in early Proto-Germanic, due to placement of the accent on a word.
(physics) the only stable isotope of scandium, ⁴⁵₂₁Sc, having twenty-one protons and twenty-four neutrons
核実験では、質量数45のスカンジウムが信頼できる基準として用いられました。なぜならそれはスカンジウムの唯一の安定同位体で、陽子21個と中性子24個から成るからです。
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