Input interpretation
helium | atomic diameter
Result
62 pm (picometers)
Periodic table location
Periodic table location
Atomic radii properties
atomic radius (calculated) | 31 pm covalent radius | 28 pm van der Waals radius | 140 pm
Units
Unit conversions
0.062 nm (nanometers)
6.2×10^-11 meters
2.4×10^-9 inches
0.62 Å (ångströms)
Comparisons as diameter
≈ (6×10^-4 to 0.8) × diameter of a molecule ( 0.74 to 1000 Å )
≈ 1.2 × atomic diameter of hydrogen ( ≈ 50 pm )