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Assertion:Atomic number of the element u...

Assertion:Atomic number of the element ununtrium is 113.
Reason:According to IUPAC system of nomenclature,the numerical roots for 1,1 and 3 are un,un and tri respectvely.

A

If both assertion and reason is the correct explanation of assertion.

B

If both assertion and reason is the correct explanation of assertion.

C

If both assertion and reason is the correct explanation of assertion.

D

If both assertion and reason is the correct explanation of assertion.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Understand the Assertion The assertion states that the atomic number of the element ununtrium is 113. - The atomic number of an element is a unique identifier that represents the number of protons in the nucleus of an atom of that element. - Ununtrium is indeed the temporary name given to the element with atomic number 113, which has since been renamed to Nihonium (Nh). ### Step 2: Understand the Reason The reason states that according to the IUPAC system of nomenclature, the numerical roots for 1, 1, and 3 are un, un, and tri respectively. - In the IUPAC naming system for elements with atomic numbers greater than 100, each digit is represented by a specific root. - The roots for the digits are as follows: - 0 = nil - 1 = un - 2 = bi - 3 = tri - 4 = quad - 5 = pent - 6 = hex - 7 = sept - 8 = oct - 9 = non - Therefore, for the atomic number 113, we have: - 1 = un - 1 = un - 3 = tri - Combining these gives us "ununtrium". ### Step 3: Combine the Assertion and Reason Both the assertion and the reason are correct: - The atomic number of ununtrium is indeed 113. - The IUPAC naming convention correctly identifies the roots for the digits in the atomic number. ### Conclusion Since both the assertion and the reason are correct, the correct answer to the question is that both the assertion and reason are true. ### Final Answer Both the assertion and the reason are correct. ---
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