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What element was discovered first hydrogen or promethium?
Hydrogen was discovered first in 1766, while promethium was discovered much later in 1945.
Many of the first discovered elements were named by?
Many of the first discovered elements were named by their discoverer or the location where they were discovered, such as hydrogen, named by Antoine Lavoisier, and uranium, named after the planet Uranus.
Was potassium k the first metal to be discovered?
Potassium was not the first metal to be discovered. It was first isolated by Sir Humphry Davy in 1807 through the electrolysis of caustic potash (potassium hydroxide). The discovery of other metals preceded potassium, such as copper, iron, and lead.
What was the first organometallic compound discovered?
The first organometallic compound discovered was diethylmercury in 1852 by Alexander Williamson.
What was the first element to be 'discovered' and who discovered it?
The first element to be discovered was probably copper or gold. They would have been discovered by hunter-gatherers or early farmers. Its discovery cannot be credited to any single person.
What products have trifluralin?
Certain herbicides such as Preen
When was rubella vaccine developed?
common enough.
Who discovered co-ordinates?
Rene Descartes first developed the mathematics of coordinate geometry.
Who developed the first primative microscope and discovered wee animalcules?
Antoni van Leeuwenhoek
When was cathode ray discovered?
The first CRT was developed by Karl Ferdinand Braun (Germany) in 1897.
The first medical imaging technique to be developed was a what?
The first imaging technique for the human body was discovered by Wilhelm Röntgen in 1895.
Who discovered a vaccine for polio?
Jonas Salk developed the first vaccine in 1952.
When was cathode ray tube discovered?
The first CRT was developed by Karl Ferdinand Braun (Germany) in 1897.
When was testicular cancer first discovered?
Nobody 'developed' it ! It is a genetic mutation of the body - not some 'invented' disease.
Where and when were rockets first developed?
Rockets were first developed in ancient China around the 9th century AD. The Chinese used gunpowder-filled tubes as fireworks and military weapons.
Who was the first people to discover the African continent?
The best evidence says that mankind developed in Africa so the very first men 'discovered' it.
Who discovered planetarium?
The planetarium was not discovered, but rather invented by German engineer and optician named Carl Zeiss. He developed the first modern planetarium projector in the early 1920s.
