2007-08-04 00:39:55 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
helium is the second lightest element
first is hydrogen
2007-08-04 00:43:28 · answer #1 · answered by CPUcate 6 · 0⤊ 0⤋
Wat is Helium= Its a Gas which is inert(non reactive chemically). It is the next lightest element of the Universe bsides Hydrogen.
Its atom consists of two electrons and a nucleous composed of two protons and two neutrons.
Helium is the by product of hydrogen Nuclear fusion process in the Sun,which results in light Energy being emitted .
2007-08-04 00:53:26 · answer #2 · answered by goring 6 · 0⤊ 0⤋
A colorless, odorless inert gaseous element occurring in natural gas and with radioactive ores. It is used as a component of artificial atmospheres and laser media, as a refrigerant, as a lifting gas for balloons, and as a superfluid in cryogenic research. Atomic number 2; atomic weight 4.0026; boiling point -268.9°C; density at 0°C 0.1785 gram per liter
2007-08-04 00:59:11 · answer #3 · answered by Anonymous · 1⤊ 0⤋
It is an inert gas, lighter than air, so useful and safe to use for filling dirigibles.
2007-08-04 00:43:30 · answer #4 · answered by rosie recipe 7 · 0⤊ 0⤋
2nd element of da periodic table
2007-08-04 00:47:06 · answer #5 · answered by Anonymous · 0⤊ 0⤋
It is a noble gas and second element.
2007-08-04 00:42:41 · answer #6 · answered by Tuncay U 6 · 0⤊ 0⤋