Helium has more mass than hydrogen. Helium is composed of two protons and two neutrons, while hydrogen is a single proton.
Air has many more different substances than helium, which is a single substance. Outside air contains helium.
Helium, as it's gas at room temperature.
A helium baloon. Water is incompressible, for most practical purposes.A helium baloon. Water is incompressible, for most practical purposes.A helium baloon. Water is incompressible, for most practical purposes.A helium baloon. Water is incompressible, for most practical purposes.
Helium is more unreactive than krypton. Helium is a noble gas located in the first group of the periodic table, making it the least reactive element. Krypton, also a noble gas, is located in the same group but is slightly more reactive than helium.
air is more dense than helium
Helium has more mass than hydrogen. Helium is composed of two protons and two neutrons, while hydrogen is a single proton.
Helium is mono atomic
Air has many more different substances than helium, which is a single substance. Outside air contains helium.
No it is not, helium is an element. A compound is a combination of two or more elements.
Hydrogen is extremely flammable and helium is safer.
As a star ages, it fuses hydrogen into helium in its core. Therefore, helium becomes more abundant in older stars compared to younger stars.
Stars make Helium as they shine - so more with age.
Helium, as it's gas at room temperature.
No. helium is an element. A mixture should have more than one substances.
more importantly are you thick, it doesnt, helium diffuses through us
Helium. To be more precise, the isotope helium-4.