Helium Helium Helium (from ) is a chemical element with symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements. After hydrogen, helium is the second lightest and second most abundant element in the observable universe, being present at about 24% of the total elemental mass, which is more than 12 times the mass of all the heavier elements combined. Its abundance is similar to this figure in the Sun and in Jupiter. This
Boiling Lake down to the lava and is heated to the boiling point. The trail leads through another volcanic area called the Valley of Desolation. The air around the area is hot, steamy and moist, supported by the sharp, acrid smell of sulphur. The area is known to have been filled with vapors and gases that escape from bubbling and boiling sulphur-water pots, small spraying and hissing geysers, cracks and holes, and a small stream that runs through and beneath the terrain. Tiny invisible sprays of steam will easily burn an ankle or foot. There is no road leading directly to the