Match the atomic number 2, 4, 8, 15 and 19 with the following:
A noble gas.

Explanation

To solve the question of matching the atomic numbers 2, 4, 8, 15, and 19 with a noble gas, we will follow these steps:

### Step 1: Identify the Elements
First, we need to identify the elements corresponding to the given atomic numbers:
- Atomic number 2: Helium (He)
- Atomic number 4: Beryllium (Be)
- Atomic number 8: Oxygen (O)
- Atomic number 15: Phosphorus (P)
...