Research & InnovationScience Insider
Have you ever wondered why helium balloons float while other regular balloons don’t?
Vidunenahawula Website (National Institute of Fundamental Studies)
Have you ever wondered why helium balloons float while other regular balloons don’t? Helium is a noble gas, which means each helium atom has a full valence electron shell. As helium atoms are stable on their own, they don’t form chemical bonds with other atoms. Regular balloons are filled with air, which is mostly nitrogen and oxygen. Nitrogen and oxygen atoms are already more massive than helium atoms. Helium is less dense than air so, helium balloons float.
