Question

What is the name and symbol of the element with atomic number 112?
A) Ununbium, Uub
B) Unniilbium, Unb
C) Ununnillum, Uun
D) Ununtrium, Uut

Answer 1

Hint: The name, and symbol of the element is based on IUPAC naming of elements with the atomic number greater than 100. In this naming from 0 to 9, 0 is being named as nil, and so on. The symbol for 0 is n, and similarly it was done in other cases too. Identify the name, and symbol.

Complete step by step answer:
*First, let us know about the IUPAC naming of elements having atomic numbers greater than 100.
*As we know in the modern periodic table, there is existence of 118 elements, from that except 24 elements all are naturally occurring.
*We know that in the table some elements have two names like the element with atomic number 104. It is named Rutherfordium, and Kurchatovium.
*Thus, to avoid the double naming, IUPAC assigned the names to the elements with the Z > 100.
*In this system, the first step is that the name can be written from the numerical value of the atomic number.
*Let us consider an example of an element with the atomic number 113, in this there are two one digits, and one digit is 3.
*In this method the root for 1 is un, and symbol is u; and for 3 the root is tri, and symbol is t.
*Thus, it will be named ununtrium, and the symbol will be Uut. The suffix ium is added at the end after all the roots.
*Similarly, we can write for 112, then for 2 the root will be bi, and symbol is b.
*Thus, it will be named as ununbium, and the symbol will be Uub.
*In the last we can conclude that the name, and symbol for an element with atomic number 112 is ununbium, and Uub.
Hence, the correct option is (A).

Note: Don’t get confused while naming the elements. As mentioned this method is just used to name the elements having atomic numbers greater than 100. Similarly, with the knowledge of numerical roots, and their symbols; the name of an element can be determined.