Give the rules for Berzelius system of naming the elements with the help of appropriate examples?
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- Law of definite proportions
- Chemical notation
- Discovery of elements
- Berzelius is credited with discovering the chemical elements cerium and selenium and with being the first to isolate silicon and thorium. Berzelius discovered cerium in 1803[21] and selenium in 1817.[22] Berzelius discovered how to isolate silicon in 1824,[23] and thorium in 1824.[24][25] Students working in Berzelius's laboratory also discovered lithium, lanthanum, and vanadium.[26]
- Berzelius discovered silicon by repeating an experiment performed by Gay-Lussac and Thénard. In the experiment, Berzelius reacted silicon tetrafluoride with potassium metal and then purified its product by washing it until it became a brown powder. Berzelius recognized this brown powder as the new element of silicon, which he called silicium,[27] a name proposed earlier by Davy.[28]
- Berzelius was the first to isolate zirconium in 1824, but pure zirconium was not produced until 1925, by Anton Eduard van Arkel and Jan Hendrik de Boer.[29]
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