The symbol for the element rubidium.
The symbol for rubidium.
A soft, silvery-white metallic element of the alkali group. It ignites spontaneously in air and reacts violently with water. Rubidium is used in photoelectric cells, in making vacuum tubes, and in radiometric dating. Atomic number 37; atomic weight 85.47; melting point 38.89°C; boiling point 688°C; specific gravity (solid) 1.532; valence 1, 2, 3, 4. See Periodic Table.
Botswana (international vehicle ID)
Database language for Revelation, by Cosmos, Inc. Combines features of BASIC, Pascal and Fortran.
- R-banding stain
R-banding stain n. A stain method in which chromosomes are heated in a phosphate buffer, then treated with Giemsa stain to produce a banding pattern that is the reverse of that produced in G-banding.
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