Helium is a colorless gas.
Helium's Properties
According to Britannica, helium (He) is a chemical element and an inert gas belonging to Group 18, also known as the noble gases. It's the second lightest element, with only hydrogen being lighter. Importantly, helium is described as a:
- Colorless gas
- Odorless gas
- Tasteless gas
Helium only becomes a liquid at extremely low temperatures, specifically −268.9 °C (−452 °F).
Key Takeaways:
- Helium is a noble gas.
- Its naturally gaseous state is colorless.
- It is neither odorous nor flavorful.
- It has a very low boiling point.
Therefore, the answer to the question is that helium is colorless.
