The elements `Z = 117` and `120` have not yet have been discovered, in which family`//`group would you place these elements and also give the electronic configuration in each case.

Explanation

To determine the family/group and electronic configuration of the undiscovered elements with atomic numbers 117 and 120, we can follow these steps:

### Step 1: Determine the Electronic Configuration of Element Z = 117
1. **Identify the nearest noble gas**: The nearest noble gas to element 117 is Radon (Rn), which has an atomic number of 86.
2. **Fill in the orbitals**:
- After Radon, we fill the orbitals according to the Aufbau principle.
- The next orbitals to fill are:
- 5f (14 electrons)
...