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First discovery - 1500 BC - Usages of Mercury = ancient greeks used it in ointments. = Ancient Egyptians and Romans used Mercury in cosmetics. 500 BC > mercury was used to make amalgams,( alloy of mercury)-
So, the history of mercury is lost across the time. No reference was found of the exact time of the first discovering or the appropriate use of mercury. It has been well known and properly used on the modern age.
What else can I help you with?
How many elements were found in the year 1985?
Any element was discovered in 1985.
What year did Marie Curie invent the polonium?
Chemical elements are not invented; they are discovered or prepared.Polonium was discovered (not invented) by Marie Curie and Pierre Curie in 1898.
What did the gaps on Mendeleev's tabel represent?
He predicted that elements with the predicted properties would be discovered to fill in these gaps.
What two elements were discovered in 1990's?
No elements were discovered in 1990. Two elements were discovered in 1994. They were Darmstadtium (atomic number 110) and Roentgenium (atomic number 111). Copernicium was discovered in 1996 and Fleroovium was discovered in 1999.
Where all the elements discovered at the same time?
No, elements were not all discovered at the same time. Elements have been discovered over time through various scientific methods such as chemical analysis, experimentation, and observation. The periodic table continues to be updated as new elements are discovered.
When was elements discovered?
no one knows it was discovered in prehistoric times
How many elements have been discovered in 2008?
There were 118 discovered elements in the periodic tableÊas of 2008. However, some of these elements still have ongoing disputes.
What did Dimitri Mendeleev discovered?
He discovered the elements and and weighed them and latter placed the elements in order to form the periodic table.
Which elements were discovered in Mendeleev's lifetime in addition to those he'd already discovered?
The elements were geranium, gallium and scandium.Katie.
Who found the elements?
No, one single person discovered the elements.
Are the element sin the periodic table the only elements discovered?
Yes. The elements in the Periodic Table are the only elements that have been discovered. However, we are still discovering and synthesising more elements.
How many elements were discovered by the end of 18th century?
Approx. 25 chemical elements were known in 1800.
