BSL Sign Language Dictionary

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selenium

How to sign: a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable gray metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)

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Similiar / Same: Se, atomic number 34

Categories: chemical element, element, antioxidant

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