Input interpretation
![alkali metals | atomic diameter](../image_source/2035d86dcb09415a4b904c0de9a9c13e.png)
alkali metals | atomic diameter
Summary
![median | 440 pm highest | 520 pm (cesium) lowest | 290 pm (lithium) distribution | | (based on 5 values; 1 unavailable)](../image_source/711afcdda8a89d0cd0e67ae3068df6dd.png)
median | 440 pm highest | 520 pm (cesium) lowest | 290 pm (lithium) distribution | | (based on 5 values; 1 unavailable)
Entity with missing value
![francium](../image_source/53fcd555624f141b4cbc3de0f01677fa.png)
francium
Ranked values
![| | visual | ratios | 5 | lithium | | 0.56 | 1 4 | sodium | | 0.69 | 1.24 3 | potassium | | 0.85 | 1.52 2 | rubidium | | 0.9 | 1.62 1 | cesium | | 1 | 1.79](../image_source/caddea7e7ce3b7e9a0e04bd91f6429e9.png)
| | visual | ratios | 5 | lithium | | 0.56 | 1 4 | sodium | | 0.69 | 1.24 3 | potassium | | 0.85 | 1.52 2 | rubidium | | 0.9 | 1.62 1 | cesium | | 1 | 1.79
Plot
![Plot](../image_source/7d88434179fd752faa6f1450d1c491a5.png)
Plot
Periodic table location
![Periodic table location](../image_source/6bf03778e879ba48b7817be4f590d551.png)
Periodic table location
Atomic radii properties
![atomic radius (empirical) | median | 220 pm | highest | 260 pm (cesium) | lowest | 145 pm (lithium) | distribution | atomic radius (calculated) | median | 243 pm | highest | 298 pm (cesium) | lowest | 167 pm (lithium) | distribution | covalent radius | median | 212 pm | highest | 260 pm (francium) | lowest | 128 pm (lithium) | distribution | van der Waals radius | median | 227 pm | highest | 275 pm (potassium) | lowest | 182 pm (lithium) | distribution |](../image_source/6a7dcdb2c6c6ef0b7e5050fd56f6e4f5.png)
atomic radius (empirical) | median | 220 pm | highest | 260 pm (cesium) | lowest | 145 pm (lithium) | distribution | atomic radius (calculated) | median | 243 pm | highest | 298 pm (cesium) | lowest | 167 pm (lithium) | distribution | covalent radius | median | 212 pm | highest | 260 pm (francium) | lowest | 128 pm (lithium) | distribution | van der Waals radius | median | 227 pm | highest | 275 pm (potassium) | lowest | 182 pm (lithium) | distribution |
Units
Atomic diameter rankings
![1 | lithium | 290 pm 2 | sodium | 360 pm 3 | potassium | 440 pm 4 | rubidium | 470 pm 5 | cesium | 520 pm (based on 5 values; 1 unavailable)](../image_source/278c15137aeee23ac94eb88dde34fd89.png)
1 | lithium | 290 pm 2 | sodium | 360 pm 3 | potassium | 440 pm 4 | rubidium | 470 pm 5 | cesium | 520 pm (based on 5 values; 1 unavailable)
Unit conversions for median atomic diameter 440 pm
![0.44 nm (nanometers)](../image_source/cb4fdc0fe32ed0644b3b3dfeeb63c2e0.png)
0.44 nm (nanometers)
![4.4×10^-10 meters](../image_source/c5597ae1a4311aa31aa8f54b71cc7bb3.png)
4.4×10^-10 meters
![1.73×10^-8 inches](../image_source/c4b3cc81c59e630fba360c1c47aaed52.png)
1.73×10^-8 inches
![4.4 Å (ångströms)](../image_source/de8639b580bea8593c27c8160cc9ac75.png)
4.4 Å (ångströms)
Comparisons for median atomic diameter 440 pm
![≈ ( 0.2 ≈ 1/5 ) × DNA helix diameter ( ≈ 2 nm )](../image_source/92c5000def3e4611e13d4534c3080907.png)
≈ ( 0.2 ≈ 1/5 ) × DNA helix diameter ( ≈ 2 nm )
![≈ 0.4 × carbon nanotube diameter ( ≈ 1 nm )](../image_source/e46ba25bf1f38a7a089c98a5919bc4e9.png)
≈ 0.4 × carbon nanotube diameter ( ≈ 1 nm )
![≈ 1.3 × diameter of a carbon atom ( ≈ 340 pm )](../image_source/4072452deeff5b58d7958f32859589ba.png)
≈ 1.3 × diameter of a carbon atom ( ≈ 340 pm )