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Selenium was not identified as an element until 1818 because it is a trace element found in a limited number of ores and does not occur in its pure form in nature. Its discovery was also hindered by its similarity to tellurium, another element with similar chemical properties, which made it difficult to separate them. Additionally, advancements in analytical chemistry techniques were necessary for its isolation and identification.
What else can I help you with?
When was James Prescott Joule born?
James Prescott Joule was born on December 24, 1818.
How was the conflict resolved when the US and Britain both claimed Oregon?
The Oregon Treaty of 1846 resolved the conflict between the US and Britain over Oregon. The treaty established the border between the US and British territory at the 49th parallel, allowing for joint occupancy of the Oregon Country for 10 years until the US gained sole control.
Who lived in the Red River Basin in 1818?
In 1818, the Red River Basin was home to various Indigenous tribes, including the Dakota Sioux and Ojibwe, as well as European fur traders and settlers from the Hudson's Bay Company and the North West Company. This region was a significant area for fur trade and cultural exchange between Indigenous peoples and European colonizers.
When did the metric system originate?
The metric system originated in late 18th-century France during the French Revolution. It was officially introduced in 1799 with the establishment of the International System of Units (SI).
What time is 18 18 the space in between the two 18 is supposed to be a semi colon?
Actually, it's supposed to be a full colon.18:18 or simply 1818 is the 24-hour equivalent of 6:18 PM.
Savage 22 rifle octagon barrel dated April 1818?
Not a good description. The .22 rimfire was not invented until 1856, so a rifle made in 1818 could not be.
How long was Chile a colony of Spain?
It was a colony of Spain until Feb 12, 1818 (277 years)
How many valves did the first trumpet have?
Trumpets date back to 1500 BCE, but trumpets did not have valves until 1793 AD and did not take off until 1818.
Which two countries finally agreed to share the country in 1818?
Great Britain and the United States agreed to share the Oregon Country in 1818 through the Treaty of 1818. This treaty allowed for joint occupation of the territory by both nations until a permanent solution could be reached.
What is 1818 in percent form?
1818 = 181,800%
What is 1818-1895?
1818 - 1895 = -77
Was Illinois one of the original colonies?
No, Illinois wasn't an original thirteen colony. It wasn't even a state until 1818.
What was the treaty of 1818?
When a tready happened in 1818 :P
How much was gas in 1818?
Gasoline did not exist in 1818.
How many nines in 1818?
1818 ÷ 9 = 202
What is the value of a 1818 dime?
There were no U.S. dimes minted in 1818.
How did Chile gain it's independence?
Chile's Independence Day is September 18, 1810. However, full independence was not granted by Spain until 1818. It was formally recognized by Spain in 1844.
