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Atomic Profile
Helium (He)
Discover properties, shell configurations, industrial applications, compounds, and historical occurrences of the Helium element.
2He4.0026
Physical Properties
Melting Point-272.2 °C (at 26 atm)
Boiling Point-268.93 °C
Density0.1786 g/L
Electronegativityno data
Group / PeriodGroup 18, Period 1
Electronic Config1s²
Bohr Shells2
Bohr Electron Model
Visualizing the concentric Bohr orbits and energy level shells for Helium.
+2
Shell 1: 2e⁻
Origin & Abundance
Discovery Details
Discovered by Pierre Janssen & Norman Lockyer in the year 1868.
Natural Occurrence
Second most abundant element in the universe. Extracted from natural gas reserves on Earth.
Common Uses & Applications
- Cooling superconducting magnets in MRI scanners
- Filling weather and party balloons
- Pressurizing rocket liquid fuels
- Deep-sea diving gas mixtures
Common Chemical Compounds
Below are typical molecular compounds formed by Helium interacting with other elements:
None (Highly inert noble gas)
Element Concept Check
Why does Helium not form chemical compounds under standard conditions?
Video Lectures & Fact Files
Watch educational lectures detailing the chemical extraction and molecular spectrums of Helium.
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