WorksheetsThe History of the Atom (H)
Total questions: 10
Worksheet time: 1hrs 4mins
Which scientist discovered the electrons?
Dalton
Thomson
Atristotle
Bohr
Bohr discovered that electrons are located in
the nucleus
inside protons
electron cloud
circular orbits around the nucleus
What is a particle with one negative charge called?
electron
proton
quark
neutron
What is the neutral particle found in the nucleus called?
proton
neutron
electron
quark
Who was the Greek philosopher who called the smallest particle of matter an "atom"?
Democritus
Aristotle
J.J Thompson
Einstein
Which of the following is/are conclusions based on Rutherford’s gold foil experiment?
Atom is mostly empty space
The nucleus is positively charged
The atom has a small dense nucleus
All answers are correct
The majority of an atom's mass exists where?
In the nucleus
In the electron cloud
In the space between the nucleus and the electrons
In the neutrons
