"0.0"^^ . "a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite"@en-us . . . "0.0"^^ . "rubidium"@en-us . . . . . . "0.0"^^ . "atomic number 37"@en-us . "14652954-n"^^ . . . . . . . "0.0"^^ . "Rb"@en-us . . . "113814116"@en-us . "0.0"^^ . . "0"^^ . . . "0.0"^^ . "a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite"@en-us . "1.0"^^ . "rubidium"^^ . . . "114652954"^^ . "0.0"^^ . "0"^^ . .