People
What they did
People
What they did
100
Put electricity into things to see how they reacted.
Who is Davy?
100
Priestly
What is discovering gas, and doing experiments with mercury?
100
Put organic chemicals in a beaker, and created crystals. Christilized pe originally and artificially.Now we can make things artificially.
Who is Wholer?
100
Rutherford
What is stating that because there are negatives in atoms, there must be positives to balance it out.
200
Repeated atoms by pictures. Dealt with how atoms combined.
Who is Kekule?
200
Lavoisier
What is helping in Paris with the mercury experiment and identifying oxygen?
200
Made the first fully synthetic plastic.
Who is Baekeland?
200
Thomsen
What is finding electron. Able to get part of electron. Bent stream of electrons in "machine" using magnets.
300
Used cards of the elements, put them in different orders to show how they related(like the periodic table).
Who is Mendeleev?
300
Bequerel
What is finding a source of radioactive rays in uranium?
300
Created the first plastic out of material on plants.
Who is Hyatt?
300
Bunsen and Curkoff
What is building a spectroscope and finding sodium on the sun?
400
The first to say that air might be an element.
Who is Da Vinci?
400
Lusac and Avagadro
What is combining volumes with different gases and discovering that gas is a multi atom?
400
Found radium and energy in atoms.
Who is Marie Curie?
400
Dolthon
What is theorizing that atoms had weight: came up to atomic theory.
500
Explained that electrons connect to each other with their outer molecules and electrons.
Who is Louis?
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