Technetium was predicted on the basis of the Periodic Table of Mendeleev because the number 43 remained empty.
The physical properties of technetium were determined after the war by different chemists and physicists around the world.
Chemists were able to predict the chemical properties of technetium by studying the periodic table and observing trends in the elements around it. Technetium is located in the transition metals group, so it was predicted to have similar properties to other elements in that group with its 7 valence electrons. Additionally, its position in the periodic table suggested that it would exhibit variable oxidation states.
Technetium is a metal.Technetium is radioactive.
Technetium is a metal.
Technetium is not from Japan.
The Brinell hardness of technetium is 112.The Vickers hardness of technetium is 151.
its a metal
Technetium is not a material to be sold to anyone on the counter.
Technetium is paramagnetic.
Technetium is paramagnetic.
Technetium is a solid.
Yes, technetium is a silver-gray metal and is considered to be odorless.