Step 1: Understanding the Concept:
Elements with atomic numbers greater than 100 have systematic IUPAC names based on their atomic number digits. Step 2: Detailed Explanation:
The IUPAC name for element with atomic number 105 is Dubnium (Db). The naming is as follows:
• 104: Rutherfordium (Rf)
• 105: Dubnium (Db)
• 106: Seaborgium (Sg)
• 107: Bohrium (Bh)
• 108: Hassium (Hs)
• 109: Meitnerium (Mt)
Step 3: Final Answer:
The IUPAC name of element with atomic number 105 is Dubnium.