Associations to the word «Chalcogen»

Wiktionary

CHALCOGEN, noun. (inorganic chemistry) Any element of group 16 of the periodic table - oxygen, sulphur, selenium, tellurium and polonium.

Wise words

Every day we should hear at least one little song, read one good poem, see one exquisite picture, and, if possible, speak a few sensible words.
Johann Wolfgang Von Goethe