Identify the incorrect match. Name IUPAC Official Name (a) Unnilunium (i) Mendelevium (b) Unniltrium (ii)…

(a) The official name of Unnilunium is Mendelevium ($\mathrm{Md}, \mathrm{Z}=101$).
(b) The official name of Unniltrium is Lawrencium ($\mathrm{Lr}, \mathrm{Z}=103$).
(c) The official name of Unnilhexium is Seaborgium ($\mathrm{Sg}, \mathrm{Z}=106$).
(d) The official name of Unununium is Roentgenium ($\mathrm{Rg}, \mathrm{Z}=111$).
 

Unununium $(\mathrm{Z}=111)$ it is Roentgenium $\left(\mathrm{Rg}\right)$ not darmstadtium.