Atomic Number 34 (Noun)
Meaning
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).
Classification
Nouns denoting substances.
Examples
- The atomic number 34 is the atomic number of the element selenium, a toxic nonmetallic element related to sulfur and tellurium.
- Selenium, with the atomic number 34, occurs in several allotropic forms, including a stable grey metallike allotrope.
- The element with atomic number 34 is used in photocells due to its unique property of conducting electricity better in the light than in the dark.
- The atomic number 34 of selenium indicates its position in the periodic table, where it is classified as a toxic nonmetallic element.
- Selenium, which has the atomic number 34, occurs in sulfide ores, such as pyrite, and is often extracted as a byproduct of copper refining.