D-And F-Block Elements Ques 412
Question: What is the name of element with atomic number 105
[CPMT 2004]
Options:
A) Kurchatovium
B) Dubnium
C) Nobelium
D) Holmium
Show Answer
Answer:
Correct Answer: B
Solution:
The element with atomic no. 105 is dubnium.
In IUPAC nomenclature, it is known as un-nil pentin.