History Of The Atom (set-1) Question Preview (ID: 61973)
Scientists.
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Thomson's atomic model was called the______________ model
a) valence electron
b) electron cloud
c) chocolate chip
d) plum pudding
Democritus called tiny bits of matter
a) molecules
b) atoms
c) compounds
d) fire
Democritus thought that matter was made of tiny particles
a) of earth, air, fire, and water.
b) that could not be divided.
c) that could be divided.
d) that were all round and smooth.
Thomson Experimented with _______
a) Alpha Particles
b) Gold Foil
c) Cathode Rays
d) Protons
J J Thomson discovered which part of the atom
a) Electron
b) Neutron
c) Proton
d) Nucleus
Millikan discover the precise
a) density of the electron
b) mass and charge of the electron
c) location and speed of the electron
d) mass of the neutron
What subatomic particle did Chadwick discover?
a) Protons
b) Electrons
c) Neutrons
d) Slipons
Rutherford discovered the
a) nucleus
b) neutron
c) electron
d) quark
Rutherford found that the atom was mostly
a) neutrons
b) electrons
c) protons
d) empty space
Rutherford experimented with ____
a) Alpha Particles and Cathode Rays
b) Cathode Rays and Gold Foil
c) Gold Foil and Alpha Particles
d) Electrons and Alpha Particles
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