Editing Royal Institution (section)

===Chemical elements discovered or isolated===
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# [[Potassium]] – Isolated from caustic potash by [[Humphry Davy]] in 1807 using electrolysis.
# [[Sodium]] – Humphry Davy first isolated sodium in 1807 from molten sodium hydroxide.
# [[Barium]] – Isolated by electrolysis of molten barium salts by Humphry Davy in 1808.
# [[Boron]] – Discovered by Humphry Davy who first used electrolysis to produce a brown precipitate from a solution of borates in 1808. He produced enough of the substance to identify it as an element but pure boron was not produced until 1909.
# [[Calcium]] – Isolated by Humphry Davy in 1808 from a mixture of lime and mercuric oxide using electrolysis.
# [[Chlorine]] – Elemental chlorine was discovered in 1774 but was thought to be a compound and was called "dephlogisticated muriatic acid air". Humphry Davy named it chlorine in 1810 after experimenting with it and declared it was an element.
# [[Magnesium]] – First produced and discovered in 1808 by Humphry Davy using electrolysis of a mixture of magnesia and mercury oxide.
# [[Strontium]] – Known in mineral form but isolated as an element in 1808 by Humphry Davy from a mixture of strontium chloride and mercuric acid.
# [[Iodine]] – Discovered by [[Bernard Courtois]] in 1811, he lacked the resources to investigate the substance but gave samples to various researchers. It was named by Joseph Louis Gay-Lussac who thought it either a compound of oxygen or an element. A few days later Humphry Davy stated it was a new element leading to argument between the two over who identified it first.
# [[Argon]] – Discovered in 1894 by [[Lord Rayleigh]] and [[William Ramsay]].

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