Chemical Bonding & Molecular Structure

Among the triatomic molecules/ions, BeCl2, N3−, N2O, NO2+, O3, SCl2, IC12−, I3−‌and‌XeF2, the total number= of linear molecule(s)/ion(s)where the hybridization of the central atom does not have contribution from the d-orbital(s) is
[Atomic number:S=16,Cl=17,I=53 and Xe=54]