-
330
periodic table
the periodic table was created -
360
plato
plato coins became elements -
May 20, 1250
Arcenic
Arcenic was discovered -
May 20, 1300
Zinc
Zinc was found in india -
Phosphorus
Phosphorus was discovered -
Antonomy
Antonomy was discovered -
cobalt
cobalt was branded -
platinum
platnium was discovered -
bismuth
Geoffery discoverd -
hydrogen
discovered in canverdish -
chemistry
chemistry was invented -
first elements
first elemets were discvered -
periodic table
was translated into english -
daltons law
daltons law was made -
elements
elements were grouped -
periodic table
elements were represented by letters -
elements
only 28 elements have been discovered -
periodic table
periodic table reaaranged -
the periodic table
periodic table was published -
periodic table
by 1869, 63 elements were discovered -
elements
radioactive elements were disocvered -
atomic numer
henry mosely determined the atomic number for each element -
elements
all elements have been discovered -
discoveries
Lanthanids and actinides were found -
nickel
contrasted in 1951