transition elementtransition element
any element of several groups of elements formed by adding electrons to an inner shell as the atomic number increases
Any of the metallic elements within Groups 3 through 12 in the Periodic Table that have an incomplete inner electron shell and that serve as transitional links between the most and the least electropositive in a series of elements. They are characterized by multiple valences, colored compounds, and the ability to form stable complex ions. Also called transition metal .
(plural transition elements)
|scandium, titanium, vanadium, chromium, manganese, cobalt, nickel, copper, zinc, yttrium, zirconium, niobium (columbium), molybdenum, technetium, ruthenium, rhodium, palladium, silver, cadmium, hafnium, tantalum, tungsten, rhenium, osmium, iridium, platinum, gold, mercury, rutherfordium (kurchatovium, dubnium), dubnium (hahnium, nielsbohrium, joliotium), seaborgium (rutherfordium), bohrium (nielsbohrium), hassium (hahnium), meitnerium, darmstadtium, roentgenium|