ટેક્નેશિયમ: આવૃત્તિઓ વચ્ચેનો તફાવત

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Many of technetium's properties were predicted by [[Dmitri Mendeleev]] before the element was discovered. Mendeleev noted a gap in his [[periodic table]] and gave the undiscovered element the provisional name ''[[Mendeleev's predicted elements|ekamanganese]]'' (''Em''). In 1937 technetium (specifically the [[technetium-97]] isotope) became the first predominantly artificial element to be produced, hence its name (from the [[Greek language|Greek]] {{lang|el|''τεχνητός''}}, meaning "artificial").