Examlex
A firewall must be ____ so its performance can grow along with the network it protects.
Elemental Symbol
A letter or combination of letters representing a chemical element in the periodic table.
Ruthenium
A rare transition metal belonging to the platinum group of the periodic table, with the symbol Ru and atomic number 44.
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.
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