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Scientists have discovered that a few prokaryotic cells do have internal membranes.
Elemental Symbol
A one- or two-letter notation derived from the name of an element, used to represent it in chemical formulas and equations.
Rubidium
A soft, silvery-white metallic element, symbol Rb, used in research and in manufacturing specialty glasses.
Elemental Symbol
A one or two-letter abbreviation that represents an element on the periodic table.
Gold
A chemical element with the symbol Au (from Latin: aurum) and atomic number 79, valued for its rarity, malleability, and as a monetary standard.
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