The element that does not show catenation is

Self linkage ability of atom and to form long chains, branched chains and cyclic chanins is called as catenationAmong all the elements in periodic table carbon has greatest ability to show catenation, due to its high C - C bond dissociation energy and due to its tetra valencycatenation property order : C >> Si > Ge ≈ SnFrom top to bottom as the the bond dissociation energy decreases catenation ability decreasesIn this group Pb does not shows catenation and bond dissciation energy order : C - C > Si - Si > Ge - Ge > Sn - Sn