Dates
2019
Who is known as the father of modern chemistry
Antoine Lavoisier
Name one flaw with the current periodic table
Hydrogen's placement
What year did Dmitri Mendeleev publish his periodic tables
1869
'The international year of the periodic table' celebrates 150 years of which scientists accomplishment?
Dmitri Mendeleev
How man columns are there in the periodic table
18
What year was a periodic table which compared masses to hydrogen proposed?
1805
Who chose to rearrange elements in the periodic table in order of their atomic masses(weights)
Alexandre-Emile Béguyer De Chancourtois
How many elements are in the periodic table
118
What year was the first artificial element ever synthesized
1937
Who discovered triads?
Wolfgang Döbereiner
Which is the only letter which is not in the periodic table
J
Which 3 years were X-rays, radioactivity and electrons discovered
1895, 1896, 1897
Which scientist published a periodic table with 60 elements
Julius Lothar Meyer,
What are the main 3 classes of elements
Metals, non metals, metalloids