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She discovered radioactivity and 2 elements, polonium and radium.
your mom descovered it
Any element was discovered in 1985.
The current periodic table contains 118 elements, as of April 2010, but many more may still be discovered.
90
Approx. 25 chemical elements were known in 1800.
Technologies weren't available.
many of the first discovered elements were named by greek and roman philosophers
40 elements are discovered uptil now
723 years
Marco Polo discovered India on his voyages in the late 13th century, and brought back many goods and spices. However, it wouldn't be until the 16th century that India would be mapped by European cartographers.
No one knows how many elements are left to discover.
55
There were 118 discovered elements in the periodic tableÊas of 2008. However, some of these elements still have ongoing disputes.
63 elements had been discovered so far.
there were eggs, sheep, pigiouns and many more