MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic ChemistryPeriodic PropertiesModern Periodic Table

Which one of the following is not a chalcogen?

A.S

B.Se

C.O

D.Na✓ Correct

Explanation

Oxygen family is also called as chalcogens because most of the ores of copper (Chalkos in greek) are oxides or sulfides. The Oxygen family includes oxygen (O), sulfur (S), selenium (Se), tellurium (Te), polonium (Po), and livermorium (Lv). Therefore, sodium (Na) is not a chalcogen.

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