Question

Incorrect match of IUPAC symbol of elements with its respective atomic number is:

• A. Sg – 106
• B. Mt – 109
• C. Bh – 105
• D. Hs – 108

Hint:

Key points to remember:

• Bh = Bohrium (107)
• Db = Dubnium (105)
• Sg = Seaborgium (106)
• Mt = Meitnerium (109)
• Hs = Hassium (108)

Answer 1

The Correct Option is C

Step 1: Verify each option
\begin{tabular}{lll} Option & Element & Correct Atomic Number
(a) Sg & Seaborgium & 106 (Correct)
(b) Mt & Meitnerium & 109 (Correct)
(c) Bh & Bohrium & 107 (Not 105)
(d) Hs & Hassium & 108 (Correct)
\end{tabular}
Step 2: Identify the mismatch
Bohrium (Bh) has atomic number 107, not 105 as given in option (c). The element with atomic number 105 is Dubnium (Db).
Step 3: Confirm other options
All other options correctly match:
- Sg (Seaborgium) is indeed element 106
- Mt (Meitnerium) is element 109
- Hs (Hassium) is element 108
Step 4: Conclusion
Only option (c) presents an incorrect match between the element symbol and atomic number.