Question

On August 2003, IUPAC approved the name of the element with atomic number 110 as:
(A) Ds
(B) Mt
(C) Uun
(D) Nnu

Answer 1

IUPAC and IUPAP were established by a joint working party (JWP) to determine the priority of claims for the discovery of elements with atomic numbers 110, 111, and 112. The report was sent to each of the claimant labs before publication to be checked for technical accuracy.

Complete answer:
The report concludes by 2001 JWP such that the criteria for the discovery of an element fulfilled only in the case of the element atomic number 110.
The discovery of the element with atomic number 110 confirmed by a joint IUPAC-IUPAP Working party. The discoverers proposed a name and symbol for this element according to IUPAC procedures. The proposal was adopted by the IUPAC council and recommended by the Inorganic Chemistry Division at Ottawa, 16 August 2003.
Darmstadtium is the name proposed by discoverers and the symbol of the element with atomic number 110 is “Ds”
Hence, in august 2003, IUPAC approved the name of the element with atomic number 110 as “Ds”.

So, the correct answer is option A.

Note:
The tradition of the naming of an element after the place of its discovery which is the proposal lies within the long establishment. The IUPAC Bureau and Council named the element with the atomic number 110 is Darmstadtium with symbol Ds be accepted by the Division Committee of the Inorganic Chemistry division considered the proposal and recommended to the IUPAC.