which is the only noble gas listed that is stable at 0 degrees celsius?

I'm not sure what you mean by stable; however, I thought all of them were stable at 0 C except for Rn which is radioactive. Some of the others have radioactive isotopes.

sorry i was too vague, i meant as a liquid

The noble gas that is stable at 0 degrees Celsius is helium (He).

The noble gas listed that is stable at 0 degrees Celsius is helium. Helium is the only noble gas that does not solidify or form a liquid state at a temperature of 0 degrees Celsius. Let me explain how we can determine this information by looking at the melting and boiling points of noble gases.

To find the melting and boiling points of noble gases, we can refer to a periodic table or search for reliable sources such as chemistry textbooks or online resources.

Now, noble gases are located in Group 18 of the periodic table and include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). These gases are known for their stable and unreactive nature due to their filled electron shells.

When we examine the melting and boiling points of noble gases, we can observe that at 0 degrees Celsius, only helium remains in a gaseous state. Here are the approximate melting and boiling points of the noble gases:

- Helium (He): Melting point: -272 degrees Celsius, Boiling point: -269 degrees Celsius
- Neon (Ne): Melting point: -249 degrees Celsius, Boiling point: -246 degrees Celsius
- Argon (Ar): Melting point: -189 degrees Celsius, Boiling point: -186 degrees Celsius
- Krypton (Kr): Melting point: -157 degrees Celsius, Boiling point: -153 degrees Celsius
- Xenon (Xe): Melting point: -112 degrees Celsius, Boiling point: -108 degrees Celsius
- Radon (Rn): Melting point: -71 degrees Celsius, Boiling point: -62 degrees Celsius

From the information above, we can eliminate all noble gases except helium, as it remains a gas at 0 degrees Celsius. So, helium is the only noble gas listed that is stable at 0 degrees Celsius.