chalcogen

American  

[kal-kuh-juhn, -jen] / ˈkæl kə dʒən, -ˌdʒɛn /

noun

1. Chemistry. any of the elements oxygen, sulfur, selenium, tellurium, and polonium, which form the VIa group in the periodic table.

---

chalcogen British  

/ ˈkælkəˌdʒɛn /

noun

1. any of the elements oxygen, sulphur, selenium, tellurium, or polonium, of group 6A of the periodic table

---

Etymology

Origin of chalcogen

First recorded in 1960–65; chalco- ( def. ) + -gen

Example Sentences

TMDs are built from stacked layers of a transition metal such as molybdenum and two layers of a chalcogen element like sulfur or selenium.

From Science Daily

The rotational properties were enabled by adding molecular components that contained an atom from the 'chalcogen' group of elements in the periodic table, specifically sulfur or selenium, to a simple organic molecule: an amide compound.

From Science Daily

We ran a few models and compared our isotope predictions for each model with the actual measurements of chalcogen isotopes on Earth.

From Salon

One of these was a chalcogen-containing gas that supplied chalcogen atoms for the TMC; the other gas was phosphorus, which provided further impurity atoms for TMC doping.

From Nature

Kadlag, Y. & Becker, H. Highly siderophile and chalcogen element constraints on the origin of components of the Allende and Murchison meteorites.

From Nature