Democritus / James Chadwick
James Chadwick’s birthdate
What is 1891 in Bollington, England
John Dalton’s birthdate
What is 1766 in Cumberland, England
J. J. Thompson’s birthdate
What is 1856 in Manchester, England
Ernest Rutherford’s birthdate
What is 1871 in Brightwater, New Zealand
Neils Bohr’s birthdate
What is 1885 in Copenhagen, Denmark
Democritus’ contributions
What is the theory of small particles called “atomos”
John Dalton’s contributions
What is the Dalton Atomic Theory
J. J. Thompson’s contributions
What is the discovery of the electron
Ernest Rutherford’s contributions
What is the discovery of the nucleus and proton
Neils Bohr’s contributions
What is the idea that atoms are mostly empty space (basically revising Rutherford’s atom)
James Chadwick’s contributions
What is the discovery of the neutron
The year John Dalton proposed his theory
What is 1808
The year that J. J. Thomson discovered the electron
What is 1897
The year Ernest Rutherford published his discoveries
What is 1911
The year Bohr proposed his structured atom
What is 1913
The year James Chadwick discovered the neutron
What is 1932
The experiments that led to Dalton’s Atomic Theory
What is experimentation with gases
The experiment that led to J. J. Thompson’s discovery
What is experimentation with cathode rays
The experiment that led to the discovery of the proton and nucleus
What is Rutherford’s gold foil experiment
The experiments that led Bohr to propose that electrons orbit the nucleus in separate rings
What is Rutherford’s gold foil experiment and Thomson’s cathode rays experiment
The experiments that led to or inspired the neutron discovery
What is Rutherford’s gold foil experiment used with Beryllium
The parts of Dalton’s Atomic Theory
What is the idea that matter is made of small particles that differ in structure based on elements and that atoms cannot be created/divided/destroyed but can be combined
The model that J. J. Thomson created
What is the plum pudding model
The reason Rutherford’s gold foil experiment lead to his discoveries
What is the radiation particles bouncing back from the foil
The model that is still used today
What is Bohr’s Atomic Model