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Some properties of helium are:
Helium is a monoatomic gas.
Helium is an inert gas.
Helium is lighter than air.
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
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∙ 10y ago
Wiki User
∙ 12y agocolorless and odorless.
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What is the heliums description?
Helium is a noble gas, it is colourless, odourless gas at STP. It is a chemically inert element.
What is heliums normal phase?
liquid, and gas.
What is heliums chemical state?
gaseous state.
What is heliums odor?
Helium is an odorless gas.
What is heliums chemical?
Helium's chemical symbol is He.
What is heliums boiling temprature?
-268.93 °C
What is heliums appereance?
helium is a colourless odourless gas
What is heliums specific gravity?
helium doesn't have a specific gravity
What is heliums room temperatures?
Helium is a gas at room temperature.
What is helium's period address?
heliums period address is 11.09
What heliums period?
The Heliums period is a explosive force of matter which produces nano bits of helium. The shockwave contributes to events here on Earth. Scientists are still trying to decode the main details.
What is heliums gender appearance?
Helium doesnot have a gender. It is a chemical element
