Some properties of helium are:
Helium is a gas, a natural chemical element.
The natural isotope 4He has 2 protons and 2 neutrons.
The natural isotope 3He has 2 protons and 1 neutron.
The number of electrons is identical - 2.
- Atomic number: 2
- Atomic weight: 4,002602(2)
- Electron configuration: 1s2
- Density: 0,1786 g/L
- Melting point: -272,2 0C
- Boiling point: -268,928 0C
- Radius of the atom (covalent): 28 pm
- First ionization energy: 2372,3 kJ/mol
- Sound speed: 972 m/s
- Thermal conductivity: 0,1513 W/m.K
- No color
- No odor
A gas. helium is classified as one of the noble gases... helium is classified as one of the noble gases...
It is considered to be an inert gas / noble gas.
It is a non-metal
helium is a gaseous element
no. helium is a non metal
It is invisible because its a gas.
non-metal, noble gas
Alkakli- earth metals
Helium doesnot have a gender. It is a chemical element
gaseous state
Helium has 2 valence electrons.
Helium is a gas at STP
liquid, and gas.
Helium is an odorless gas.
gaseous state.
Helium's chemical symbol is He.
-268.93 °C
If it has a coating of liquid then it is dewey.
Homophones and homographs.
Schedule II
Canis lupus
Alkakli- earth metals
Some are against and some wants to put one in the slab for science clasification. The thing is that a film is not a proof for clasification.
helium is a colourless odourless gas