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WorksheetsTHE BUILDING BLOCKS OF MATTER
Total questions: 15
Worksheet time: 7mins
Who discovered the positively charged part of an atom?
J.J. Thompson
John Dalton
Eugen Goldstein
Ernest Rutherford
What subatomic particle has a negative charge?
electron
proton
neutron
nucleus
How did J.J. Thompson discover the corpuscles? Through the:
Gold foil experiment
Cathode ray tube experiment
Alpha particle experiment
Electron cloud
Why did the alpha particles deflect when it hit the nucleus?
because the nucleus is positively charged
because the nucleus is negatively charged
Who proposed the idea that electrons revolve around the nucleus?
Democritus
Aristotle
Neils Bohr
Erwin Schrodinger
Who proposed the Plum pudding model?
Aristotle
Eugen Goldstein
Ernest Rutherford
J.J. Thompson
Who proposed the idea of neutrons?
John Dalton
James Chadwick
Aristotle
Erwin Schrodinger
Where can the electrons be found?
outside the nucleus
inside the nucleus
What subatomic particle has a positive charge?
electron
neutron
proton
quark
Who was the first one to propose the existence of tiny particles?
James Chadwick
Aristotle
Democritus
John Dalton
What is the name of the current model of an atom?
Plum Pudding Model
Electron Cloud
Solid Sphere
Quantum mechanical model
Who said that atoms are indestructible and indivisible?
Aristotle
Eugen Goldstein
Democritus
John Dalton
What are the three major subatomic particles?
electrons, protons, quarks
quarks, protons, neutrons
neutrons, protons, electrons
electrons, neutrons, quarks
Who proposed that electrons move rapidly?
John Dalton
James Chadwick
Eugen Goldstein
Erwin Schrodinger
What subatomic particle avoids the repulsion of like charges in an atom?
electron
proton
neutron
quark
