Dubnium, an artificially produced radioactive transuranium element with atomic number 105, is present in which group of the periodic table?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Group 5.
Dubnium (Db) is an artificially produced, radioactive transuranium element with atomic number 105. It belongs to Group 5 of the periodic table, which also includes vanadium (V), niobium (Nb), and tantalum (Ta). Dubnium shares chemical properties with other Group 5 elements, such as forming pentavalent compounds, but it is highly unstable and exists only in trace amounts, produced in particle accelerators. Its short half-life and radioactivity limit practical applications, and it is primarily used for scientific research in nuclear chemistry and physics.