Question

For the 115th element _________ is the name as per IUPAC nomenclature and __________ is the official name.

• A. Unnilquadium, Mendelevium
• B. Unnilunium, Rutherfordium
• C. Ununpentium, Moscovium
• D. Moscovium, Ununpentium

Answer 1

Answer:

C. Ununpentium, Moscovium

As per IUPAC nomenclature, the roots are as follows: 0 – nil, 1 – un, 2 – bi, 3 – tri, 4 – quad, 5 – pent, 6 – hex, 7 – sept, 8 – oct and 9 – enn. So 115 is Ununpentium and the official name is Moscovium was named after the Moscow Oblast in which Joint Institute for Nuclear Research is situated.