Events
1754/Scottish medical student Joseph
Black discovered Carbon Dioxide
Made people realize the third stage of matter
"Gas"1669 / German alchemist
named Hennig Brandt
find Phorphus in Urine1767 / Priestley discover
the making of "bubbly water"1772/ Priestley had invented a better method: generating carbon dioxide and injecting it
directly into water.
This is CarbonationMid-1700s
Phlogiston became
popular.Easter 1775/
Lavoisier announce his finding
Oxygen. Without crediting PriestlyOct. 1772/
Lavoisier set out to solve the
riddle of why metals gain weight
when they form calxes.1772/
French Spy Magellan alerted France about British's interest for Soda Water as cure.
Trudaine order Lavoisier to repeat the experimentsAug 1774/
Priestly first contacted Oxygen
But he was unable to explain it.Sometime in 1774/
At a chemist gather,Priestly told Lavoisier about his discovery of Oxygen.1789/
Lavoisier publish his chemical theory.
Phlogiston theory slowly deceased.1799/
Davy overthrown Lavoisier's theory of heat.
He argue heat was motion of particle.1799/
Davy discover Nitrous Oxide.1800/
Alessandro Volta announced his invention
"voltaic pile"the first battery.1807/
Davy isolated potassium,sodium,magnesium, calcium, strontium, and barium.1868/
Mendeleev completed the
first volume of Principles of Chemistry1869/
Mendeleev published the first version of
Periodic Table of the Elements.
Setting up the periodic law.1873/
The founder of gallium,a french chemist, question the periodic law.
The density didn't match Mendeleev’s prediction. Mendeleev suggested that he check his data.
The french chemist recheck his measurement only to prove Mendeleev was correct.1894/
the newly found element Argon didn’t seem to fit into the table.
Challenging the Periodic Table.1902/
the family of noble gas, helium, neon, argon, krypton and xenon, were added to the periodic table by Mendeleev.1895/
Discovery of X-Ray1902/
Marie Curie discover pure Radium and a new property of matter "radioactivity".July 1898/
Marie Curie discover Polonium1789/
discovery of uranium by Martin Heinrich KlaprothPeriods
Early 1770s /
Joseph Priestley
discovers many gases elementsLavoisier study air in depth. Discovering alloy. Abolished ancient elements-air,water,earth,and fire and Phlogiston Theory. Many Chemist around the world refused to abandon the old theory.New discover krypton, xenon and neon doesn't fit in periodic table.
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