Paracelsus introduced the concept of "disease" to medicine, however rejecting the idea that disease is a matter of imbalance and disharmony in the body. He claimed that disease is caused by agents outside the body attacking it. This was long before viruses and bacteria were discovered.
Trimble, Russell, "Alchemy," in The Encyclopedia of the Paranormal edited by Gordon Stein (Buffalo, N.Y.: Prometheus Books, 1996), pp. 1-8.
The elements that the alchemists discovered are arsenic, antimony, phosphorus and zinc. They were discovered between 1 A.D. to year 1735.
Mendeleev discovered 63 of the elements. Go to the related link to find out which ones.
Alchemists didn't know anything about atoms.
Alchemists experimented with elements.
lead
U
No. Only chemicals.
Alchemists :)
Argon was discovered by William Ramsay in 1895
elements not yet known to exisits
Alchemists could not turn metal into gold because gold is an element.
Which of the following secrets did alchemists like Paracelsus hope to discover: how to change lead into gold
No. Only chemicals.
gunpowder, or the interaction of sulfur,saltpeter, and charcoal
Alchemists were the first chemists. Using chemicals and magic, they attempted to turn lead into gold, and to create the philosopher's stone.
Alchemists :)
Air, water, fire, earth.
It came from the alchemists in the Middle Ages because these elements were unchanged by fire.
Putrefactio meant decay. The alchemists believed in breaking down matter to it's base elements, either through decay of by using acid.
No.
Most medieval alchemists believed there were four elements: fire, earth, air, and water. Their idea of elements was a bit different from that of modern chemists. They knew about some chemical elements, including gold, silver, copper, iron, mercury, and sulphur, but they did not know they were elements. They discovered some elements, including bismuth, antimony, and arsenic, but they did not know they were elements either. All of these elements, and everything else in nature, they believed, was made up of varying combinations of fire, earth, air, and water.
82 elements. lol
There are many more! Just like we always discover new planets, we are always discovering new elements, too.