Input interpretation
![helium | van der Waals radius](../image_source/a67ebf3188525d28101d5ab97321ce84.png)
helium | van der Waals radius
Result
![140 pm (picometers)](../image_source/23fe131df382e0fe0d9b64feea880273.png)
140 pm (picometers)
Periodic table location
![Periodic table location](../image_source/d628c4c60c898856af0c0c559b5ff0e4.png)
Periodic table location
Atomic radii properties
![atomic radius (calculated) | 31 pm covalent radius | 28 pm van der Waals radius | 140 pm](../image_source/80e4eeca07b5ad149f0c177f5035d867.png)
atomic radius (calculated) | 31 pm covalent radius | 28 pm van der Waals radius | 140 pm
Units
Unit conversions
![0.14 nm (nanometers)](../image_source/55fe5727165f85d7a3f5b6603a91b550.png)
0.14 nm (nanometers)
![1.4×10^-10 meters](../image_source/e1f08d36f4b13536912dc574995c5fba.png)
1.4×10^-10 meters
![5.51×10^-9 inches](../image_source/6c393148f5cf11a5fb9effc2f6d01330.png)
5.51×10^-9 inches
![1.4 Å (ångströms)](../image_source/63e32401d090a70e7178c2882d46c75c.png)
1.4 Å (ångströms)
Comparisons as atomic radius
![≈ 4.5 × atomic radius of helium (the smallest atom) ( ≈ 31 pm )](../image_source/5838ba0ce75c25eb8fa94417ec9a5138.png)
≈ 4.5 × atomic radius of helium (the smallest atom) ( ≈ 31 pm )
![≈ 5.6 × atomic radius of hydrogen ( ≈ 25 pm )](../image_source/538ddc79f0e430411c23e6d7ee741b1b.png)
≈ 5.6 × atomic radius of hydrogen ( ≈ 25 pm )