There were 118 discovered elements in the Periodic TableÊas of 2008. However, some of these elements still have ongoing disputes.
In 1870, 63 elements had been discovered.
117 elements
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63 elements had been discovered so far.
118
Over 118 elements have been discovered and confirmed on the periodic table.
97 elements were known in 1950. Berkelium (Element 97) was discovered in December 1949.
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Approximately 52 elements had been discovered by the time Charles Macintosh invented a waterproof fabric in 1823.
By 1869, a total of 63 elements had been discovered and reported in the scientific literature. These elements formed the basis for Mendeleev's development of the periodic table.
There are currently 38 radioactive elements that have been discovered. These elements have unstable nuclei that undergo radioactive decay, emitting radiation in the form of alpha particles, beta particles, or gamma rays.
Mendeleev left gaps for eight elements in his periodic table that were yet to be discovered. These gaps eventually corresponded to the elements gallium, germanium, scandium, technetium, francium, and technetium.