2007-04-24 05:52:29 · 4 answers · asked by Blue.. 1 in Science & Mathematics ➔ Chemistry
Tantalum was discovered in Sweden in 1802 by Anders Ekeberg and isolated in 1820 by Jöns Berzelius. Many contemporary chemists believed niobium and tantalum were the same elements until 1844 and later 1866 when researchers showed that niobic and tantalic acids were different compounds. Early investigators were only able to isolate impure metal and the first relatively pure ductile metal was produced by Werner von Bolton in 1903. Wires made with tantalum metal were used for light bulbs until tungsten replaced it
2007-04-24 05:58:44 · answer #1 · answered by The exclamation mark 6 · 0⤊ 0⤋
Mr tantalum
2007-04-24 05:56:34 · answer #2 · answered by philo_sophers_dawn 2 · 0⤊ 1⤋
Ekegerg 1802
2007-04-24 05:57:30 · answer #3 · answered by maussy 7 · 0⤊ 1⤋
Ekeburg in 1802.
See: http://periodic.lanl.gov/elements/73.html
2007-04-24 05:58:42 · answer #4 · answered by a simple man 6 · 0⤊ 1⤋