Helium
Tyler Loewe
Description
- Helium is a colorless non-metallic gas.
- It is the first period on the periodic table
- Group eighteen, also known as a noble gas.
- Nobles gases are non-reactive.
Basic Information
- Name is Helium
- Elemental symbol is He
- Atomic number is 2
- Atomic weight is 4.002
- Group 18
- Period 1
- Color is colorless
- Classification is non-metallic
Properties
- Helium is a gas at 298 kelvin (24.85 Celsius),
- It's melting point is -272.2 Celsius.
- It is a non-reactive gas.
History
- Helium was discovered by Sir William Rogers.
- Found in London, England and Uppsala, Sweden
helium is found in balloons
Uses
- Contributes toward the process of telling the age of rocks
- Fills balloons
- Inert gas used for welding in countries that helium is cheaper than argon
- Protective gas in silicon and germanium crystals
- Production of titanium and zirconium
- Fake oxygen to divers
- Supersonic wind tunnels
- Pressurizing liquid fuel rockets
- Protects semiconductor materials
Biology(human)
Has no biological role in humans
Geological
- Found in hot stars
- Commonly found in hydrocarbon gases
Interesting facts
- Used for cryogenic purposes
- Comes from the Greek word Helios which means sun
- First found during a solar eclipse in 1868
- Second most common gas in the universe
- Most of helium western world supply is found in U.S wells.
- Though expensive to do Helium can be made by fusing hydrogen atoms into helium