A light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite.
Letter of the Latin alphabet.
The basic unit of thermodynamic temperature adopted under the Systeme International d'Unites.
The cardinal number that is the product of 10 and 100.