Question

IUPAC official name for the element shows atomic number 110?

• A. Darmstadtium
• B. Roentgenium
• C. Meitnerium
• D. Copernicium
• E. Nihonium

Hint:

To secure easy marks, memorize the names and symbols of elements from \(Z=101\) to \(118\). They are frequently tested factual questions.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
The International Union of Pure and Applied Chemistry (IUPAC) assigns official, permanent names and symbols to new elements once their discovery is confirmed. Before confirmation, temporary systematic names based on Latin and Greek roots for the digits are used (e.g., Ununnilium for 110).
Step 2: Key Formula or Approach:
This question requires direct factual recall of the periodic table, specifically the modern nomenclature for the superheavy transactinide elements (atomic numbers \(Z \ge 104\)).
Step 3: Detailed Explanation:
Let's review the official IUPAC names for the elements listed in the options:
- Element 109: Meitnerium (Mt), named after Lise Meitner.
- Element 110: Darmstadtium (Ds), named after the city of Darmstadt in Germany, where it was discovered.
- Element 111: Roentgenium (Rg), named after Wilhelm Conrad Röntgen.
- Element 112: Copernicium (Cn), named after Nicolaus Copernicus.
- Element 113: Nihonium (Nh), named after Japan (Nihon).
The question asks for the element with atomic number 110. Based on the list, this is Darmstadtium.
Step 4: Final Answer:
The official IUPAC name is Darmstadtium.