Science 8:Quiz.04.01

What is the correct order of scientists in order of their work related to the atomic theory from earliest to most recent?

• Ernest Rutherford, JJ Thomson, John Dalton, & Democritus

• JJ Thomson, John Dalton, Ernest Rutherford, & Democritus

• Democritus, John Dalton, JJ Thomson, Ernest Rutherford.

• John Dalton, JJ Thomson, Democritus, & Ernest Rutherford

What was J. J. Thomson's contribution to the atomic theory?

• Discovered the electron

• Discovered the nucleus -did the gold foil experiment

• Created a model of the atom with electrons moving around the nucleus in fixed orbits

• Discovered the neutron

Who proposed that the atom consists mostly of empty space with a nucleus at the centre?

• Bohr

• Dalton

• Rutherford

• Chadwick

What subatomic particles did James Chadwick discover?

• protons. 

• neutrons

• electrons

• quarks

Who's atomic model is this?

• Thomson

• Rutherford

• Democritus

• Bohr

Which Scientist created this model?

• Democritus

• Chadwick

• Bohr

• Rutherford

What is the smallest particle of an element that retains the chemical properties of that element?

• ion

• isotope

• atom

• element

electrons travel in paths/energy levels

• Thomson

• Bohr

• Schrodinger

• Rutherford

Tags

NGSS.HS-PS1-1

founded electron cloud

• Thomson/Rutherford

• Dalton/Thomson

• Schrodinger/Heisenberg

• Bohr/Democritus

What is the atomic number?

• the number of protons in the nucleus

• the number of neutrons in the nucleus

• the number of protons and neutrons in the nucleus

• the number of protons in the energy levels