atomic number 34 английский

Значение atomic number 34 значение

Что в английском языке означает atomic number 34?

atomic number 34

селен (= selenium) a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey 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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