Rank the following elements according to the atomic radius: Oxygen, Neon, Helium
Here are the three elements ranked by atomic radius, in descending order (largest to smallest):
1. Neon
2. Oxygen
3. Helium
Below is an instruction that describes a task, write a response that appropriately completes the request.

### Instruction:
Rank the following elements according to the atomic radius: Oxygen, Neon, Helium

### Response:
Here are the three elements ranked by atomic radius, in descending order (largest to smallest):
1. Neon
2. Oxygen
3. Helium