Chemistry scientists
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/23
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
24 Terms
Who is responsible for the gold foil experiment?
Ernest Rutherford
Who used the cathode ray tube for his discoveries?
J.J. (Joseph John) Thomson
Who is responsible for the "electron cloud" or "quantum mechanical" model?
Schrodinger (Heisenberg a little)
Who stated atoms were indivisible?
First Democritus (that's where the word comes from), then our boy John Dalton
Who stated that atoms combine in small whole ratio numbers to form compounds?
Gay-Lassac (remember his name is 'gay' and the atoms are combining; like a gay couple would.)
Who determined the mass of an electron?
Robert Millikan (Also kinda Thomson)
Who is responsible for the uncertainty principle?
Heisenberg ("Heisenberg uncertainty principle")
Who stated that electrons reside in energy levels?
Niels Bohr
Who is credited with discovering the nucleus?
Ernest Rutherford
Who did not know that sub-atomic particles exist?
Democritus and Dalton
Who discovered that atoms were >99% space?
Earnest Rutherford
Who is credited with the discovery of the electron?
John Thomson
Who created the plum-pudding model?
J.J. Thomson
Who determined that electrons behave as particles?
Millikan, but Mr. L also said Max Plunk
Who determined that in chemical reactions atoms are combined, separated, or rearranged; but never created or destroyed?
John Dalton
Who created the planetary model?
Bohr !
Who is responsible for the Oil drop experiment?
Millikan
What is the Heisenberg uncertainty principle?
it is impossible to determine simultaneously both the position and velocity of an electron.
What was the first atomic model in our list?
The Dalton model, also known as the Solid Sphere model
When was the plum puddin model created? By who?
1904, JJ Thomson
When was the nuclear model (apparently the planetary model but that's not right it's just on the hw) created? By who?
1911, Earnest Rutherford
When was the Bhor model created?
1913
When was the electron cloud model created? By who?
1926, Schrodinger
Alright, put them in order. Bohr model (BM), electron cloud model (ECM), Dalton model (DM), Planetary model (PM), and Plum pudding model (PPM)
DM, PPM, PM, BM, ECM
