Give the name and atomic number of the inert gas atom in which the total number of `d`-electrons is equal to the difference in number to the `p`-and `-s`-electrons.

Explanation

To solve the question, we need to identify the inert gas atom where the total number of `d`-electrons is equal to the difference between the number of `p`-electrons and `s`-electrons. Let's go through the steps to find the answer.

### Step 1: List the Inert Gases and Their Atomic Numbers
The inert gases (noble gases) are:
- Helium (He) - Atomic Number 2
- Neon (Ne) - Atomic Number 10
- Argon (Ar) - Atomic Number 18
- Krypton (Kr) - Atomic Number 36
...