Caesium melting point

Metallic substances vary in hardness from, e.g., sodium and gallium which can easily be cut with a knife, to very hard materials such as tungsten, which finds applications in making drills etc. Their melting and boiling points are equally variable, and correlate fairly well with their hardness. Thus caesium and gallium melt just above room temperature, while tungsten melts at 3380 °C. The most characteristic properties of metals are ... 

The studies of this period led to a definition of severe accident protection criteria (see Section 1-2 and Chapter 18) similar to those already in force in Italy and to those developed in Sweden. In Italy, it was thought possible to provide a defence against severe accidents by accident management provisions and by some reasonable plant modification, up to the point of limiting iodine and caesium releases to 0.1 per cent with a probability higher than 95 per cent in the case of core melt (conditioned probability). 

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