The IUPAC symbol for the elements with atomic number 117 would be:

Options

A. uuo
B. uun
C. uue
D. uus

Answer

To determine the IUPAC symbol for the element with atomic number 117, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Atomic Number**: The atomic number given is 117.

2. **Break Down the Atomic Number**: The atomic number 117 can be broken down into its digits: 1 and 17.

3. **Assign Names to Each Digit**:
- The digit '1' corresponds to the prefix "un" (for one).
- The digit '7' corresponds to the prefix "sept" (for seven).

4. **Combine the Prefixes**: Combine the prefixes for the digits:
- For 1: "un"
- For 7: "sept"
- Together, this gives us "unsept".

5. **Add the Suffix**: According to IUPAC naming conventions, elements with atomic numbers greater than 100 typically end with the suffix "ium". Therefore, we add "ium" to "unsept":
- Combined, we get "unseptium".

6. **Determine the Symbol**: The symbol for the element is typically derived from the name:
- The first letter of "unseptium" is 'U' and the first letter of "sept" is 'S'.
- Therefore, the symbol for the element with atomic number 117 is "Uus".

7. **Final Answer**: The IUPAC symbol for the element with atomic number 117 is **Uus**.