Input interpretation
alkali metals | neutron cross-section
Summary
median | 2.1 b highest | 71 b (lithium) lowest | 0.38 b (rubidium) distribution | | (based on 5 values; 1 unavailable)
Entity with missing value
francium
Ranked values
| | visual | ratios | 5 | rubidium | | 0.005 | 1 4 | sodium | | 0.007 | 1.4 3 | potassium | | 0.03 | 6 2 | cesium | | 0.41 | 80 1 | lithium | | 1 | 190
Neutron cross-section rankings
1 | rubidium | 0.38 b 2 | sodium | 0.53 b 3 | potassium | 2.1 b 4 | cesium | 29 b 5 | lithium | 71 b (based on 5 values; 1 unavailable)
Unit conversions for median neutron cross-section 2.1 b
210 fm^2 (square femtometers)
2.1×10^-28 m^2 (square meters)
Comparisons for median neutron cross-section 2.1 b
≈ 2.3 × cross-sectional area of a uranium nucleus ( ≈ 9.2×10^-29 m^2 )
≈ 3.2 × Thomson cross section ( ≈ 6.7×10^-29 m^2 )