Atomic History

Who discover the electron?

• Dalton

• Rutherford

• Thomson

• Bohr

What did Rutherford discover in his experiment?

• nucleus

• electrons

• neutrons

• protons

In which model are atoms imagined as tiny balls?

• Dalton

• Thomson

• Rutherford

• Bohr

What does atom mean?

• small

• visible

• indivisible

• particle

Who came up with the first atomic theory?

• Dalton

• Socrates

• Thomas

• Rutherford

Who was considered as one of the founders of the ancient atomist theory?

• Aristotle

• Parmenides

• Empedocles

• Democritus

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, Bohr, John Dalton, Democritus, & Quantum Mechanical

• Quantum Mechanical, JJ Thomson, John Dalton, Bohr, Ernest Rutherford, & Democritus

• Democritus, John Dalton, JJ Thomson, Ernest Rutherford, Bohr & Quantum Mechanical

• Bohr, John Dalton, JJ Thomson, Democritus, Quantum Mechanical & Ernest Rutherford

Where are electrons located in an atom?

• Nucleus
• Electron Cloud
• Within a Proton
• Within a Neutron

Electron cloud is based on

• Quantum Mechanics
• Gold Foil Experiment
• Matter is made up of small particles called atoms
• Nuclear Theory

J.J. Thomson provided evidence that an atom...

• is the smallest particle of matter
• contains negatively and positively charged particles
• has an overall negative charge
• has an overall positive charge