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hydrogen and helium
mostly hydrogen and helium
hydrogen and helium
hydrogen and helium
hydrogen and helium
hydrogen and helium
2(6.022*10^23) if we are assuming diatomic hydrogen gas (most stable). 6.022*10^23 if it is elemental hydrogen.
because hydrogen was very small and also because of avogadros principle
Mostly of hydrogen ... over 95 %.
If you have studied hard in life science you should know this but the real answer is that yes the nebular hypothesis was made by helium and hydrogen..
Hydrogen's temperature is mainly 13.8033 kelvins.
Hydrogen gas is a gas at room temperature.