Explanation:
Given, atomic No $(\mathrm{Z})=119$
Nomenclature of elements with atomic number (Z) greater than 100 :
$0=$ nil, $1=$ un, $2=$ bi, $3=$ tri, $4=$ quad, $5=$ pent, $6=$ hex, $7=$ sept, $8=$ oct, $9=$ enn.
Hence, the IUPAC name of element with
$\mathrm{Z}=119$ is ununennium
$\mathrm{Z}=111$ is unununnium
$\mathrm{Z}=118$ is ununoctium
$\mathrm{Z}=109$ is unnilennium