-
1500
alchemists began to penetrate substances
As a fact:
Vesalius mapped the human body.
Copernicus had the idea that the earth was at the centre of the university. -
1526
Paracelsus
he suggested that the earth was made of three elements; salt, sulphur, and mercury. -
Robert Boyle
1661 the book "the sceptical chemist" was placed in The Royal Society in London, This book written by Robert Boyle have a set of stages for futures elements, and a signifies a transformation from alchemy to modern chemistry. Also Boyle was willing to divulge some of chemical secretes. -
Johann Becker
Becker proposed that the destructive power of the fire was caused by an entity named phlogiston. -
Hennig Brandt
he was looking to make gold, but he found fiery phosphorus. -
Henry Cavendish
Cavendish had an autism condition, but he made a vital discovery achieving isolate hydrogen though he was not credited for his discovery during his lifetime. -
Daniel Rutherford
he found the nitrogen -
Joseph priestly
August First, in 1774. He found oxygen
Priestly experimented with oxygen, hydrogen, and carbon. -
Priestly met to Antoine Lavoisier
Antonie Lavoisier
--was determined to crack open the mysteries of natural world.
--who is known as a father of chemistry.
-- defined what was an element was a substance that could not be decomposed.
--pioneered a scientific method
--had shown the phlogiston did not exist. -
Marrie-anne Pierrete
marie-annie pierrete was chemist created diagrams, traductions for her husband' work -
water is a compound
-
at the end of 18th century
--three gases are known (hydrogen, oxygen, and carbon
--33 elements had found so far. -
Humphry Davy found potassium
he was working with some crystalline salt called potash, he split it into most fundamental ingredients, and he found and he found an element never seen before potassium K
introduces them to laughing gas and turns the battery into a powerful tool in the search for new elements.