History of the Periodic Table

Who is credited with creating the first periodic table as we know it today?

What did Henry Moseley determine about the arrangement of elements?

Who suggested the classification of Lanthanides and Actinides in the periodic table?

Who discovered the first noble gas, Argon?

Who is credited with the first discovery of periodicity in the elements?

Which scientist noticed that atomic weights seemed to be multiples of that of hydrogen?

Who formulated the 'law of octaves' to classify the known elements?

Who introduced the use of letter symbols to represent elements?

Who estimated the relative weights of elements in 1801?

Who attempted to create a Philosopher's stone but instead discovered phosphorus?

Aristotle discovered the Four element theory: Earth, Fire, Water, ______

Amateur alchemist, Hennig Brand, attempts to create a Philosopher's stone. Instead discovers ______

French chemist, Antoine Lavoisier, compiles a list of 33 ______

John Dalton estimates the relative weights of ______

Johann Wolfgang Döbereiner discovers groups of elements with similar ______

John Newlands divides the known elements into 11 groups and formulates the ______ of octaves

Dmitri Ivanovich Mendeleev created the first periodic table as we know it today, by listing the elements on the back of an invitation to a cheese factory. He left spaces open in his table for the elements that have not yet been discovery at the time. -1894 Sir William Ramsay and Lord Rayleigh discovers the first noble gas, ________.

Henry Moseley determines that the elements should be arranged by ________ number not atomic weight.

James Chadwick discovers the ________.

The American chemist, Glenn T. Seaborg, suggests the classification of ________ and Actinides.