WorksheetsAtomic Theory
Total questions: 12
Worksheet time: 9mins
Who is credited with the "discovery" of the proton?
Thomson
Rutherford
Chadwick
Joliot-Curie
Which of these believed that the atom was unsplittable?
Democritus
Dalton
Thomson
Bohr
Which of these believed that a part of the atom was the nucleus
Dalton
Bohr
Shrodinger
Thomson
Which of these put electrons in orbits?
Thomson
Rutherford
Bohr
Shrodinger
Which of these was the first to state that atoms of a certain type of matter would all have the properties of that matter?
Democritus
Dalton
Thomson
Chadwick
Which of these was the first to isolate neutrons in the lab?
Thomson
Rutherford
Chadwick
Joliot-Curie
Which of these gave us SPD and F orbitals?
Thomson
Bohr
Shrodinger
Pauling
This helped prove the existence of:
Proton
Neutron
Electron
Nucleus
This helped prove the existence of
Proton
Neutron
Electron
Nucleus
Which scientists did NOT think this would be what a fluorine atom would look like?
Thomson
Bohr
Shrodinger
de Broglie
All scientists after Thopson placed (a) on the outside of the atom because they were easily removed from matter.
Which are two valid reasons Chadwick looked for another nuclear particle (aside from the proton)?
The positive protons needed negative neutrons to stick them together.
The positive protons needed neutral neutrons to stick them together.
The mass of the atom was only made up of 1/3 protons and 1/3 electrons - 1/3 was missing.
The mass of the atom was made up of 1/2 protons. Since electrons are too small to account for any mass, 1/2 of the mass is missing.
