Question

What is the symbol of an element having atomic number 113?

• A. Uut
• B. Uup
• C. Uub
• D. Uuu

Hint:

Newly discovered elements are temporarily named with the prefix 'U' followed by the first three letters of their atomic number.

Answer 1

The Correct Option is A

Step 1: Understanding the question.
The element with atomic number 113 is known as Nihonium (Nh). However, in the IUPAC nomenclature, the symbol for the element before its official naming is given as "Uut," representing the temporary name of the element.
Step 2: Analyzing the options.
(A) Uut: Correct. This is the temporary symbol for the element with atomic number 113, Nihonium, before its official naming.
(B) Uup: Incorrect. This was the symbol for element 115, Moscovium.
(C) Uub: Incorrect. This was the symbol for element 112, Copernicium.
(D) Uuu: Incorrect. This is not a valid symbol in the current periodic table nomenclature.
Step 3: Conclusion.
The correct answer is (A) Uut, the temporary symbol for element 113.