5th century BCE
17th century
18th century
19th century
20th & 21st century
100

Atoms derived from what Greek word?  

"Atomos" Which means indestructible 

100

Conducted expierements on gasses laying the groundwork for future Atomic based exierements.

Robert Boyle 

100

Who discovered Hydrogen 

Henry Cavendish

100

Proposed the Atomic theory 

John Dalton 
100

Made the model of the atom that heavily influenced quantum mechanics 

Niels Bohr 

200

What did Democritus believe about the atom in terms of its structural stability 

They were eternal and indestructible 

200

Famous Person who indirectly supported the concept of Atoms with his study of nature and physics 

Isaac Newton 

200

popular form of study discovered in the 18th century 

Hint: were taking the class right now 

chemistry 

200

Who discovered electrons through experiments with cathode rays.

J.J Thompson 

200

Used the 'Foil experiment to discover the nucleus

Ernest Rutherford

300

How did Democritus describe atoms for the first time  

There are Different types of Atoms and they all differ in size shape and weight.

300

Who wrote Harmonices Mundi 

Johannes Kelper

300

What was the name of theory that had to do with a type of substance called Phlogiston being released in the result of combustion 

Phlogiston Theory

300

who suggested that equal volumes of gases at the same temperature and pressure contain the same number of molecules?

Avogadro
300

Used the 'Oil drop' experiment to discover the charge of electrons.

Robert Millikan

400

What was Democritus's view on Atoms and space?

He believed that Atoms moved freely in empty space.

400

What concept relating to quantities of reactants and products in chemical reactions started to emerge in the 18th century?

stoichiometry

400

Who held a conference that helped standardize atomic weights 

Stanislao Cannizzaro

400

Originator of quantum theory 

Max Planck 

500

What was Aristotle's view on Matter 

Every object consists of matter and form and one cannot exist without the other.

500

Who created the periodic table 

Dmitri Mendeleev

500

Who created the famous "wave equation"

Erwin Schrodinger

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