Question

The decreasing order of catenation of group 16 elements is

Answer 1

Oxygen group element, also called chalcogen, any of the six chemical elements making up Group 16 (VIa) of the periodic classification—namely, oxygen (O), sulfur (S), selenium (Se), tellurium (Te), polonium (Po), and livermorium (Lv).

Answer 2

${\huge {\mathfrak {Answer :-}}}$

➡️ The decreasing order of catenation of group 16 elements is called $<b>Chalcogen </b>$.

That's it..