atomic number 55


  • WordNet 3.6
    • n atomic number 55 a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
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In science:

It means that the minimum number of 3He atoms forming part of the primary effecton’s edge at -point must be 8, i.e. two times more than that in 4He (condition 55).
Hierarchic Models of Turbulence, Superfluidity and Superconductivity