Atomic Theory Test

What subatomic particle and what model did J.J. Thomson discover and create?

• electron and the Solar System model

• electron and the Plum Pudding Model

• electron and the Bohr Model

• proton and the Plum Pudding Model

Rutherford discovered what part of the atom

• nucleus

• neutron

• proton

• electron

First person to propose the concept of an atom

• Rutherford

• Democritus

• Dalton

• Bohr

Who proposed the theory that atoms orbit the nucleus in specific orbits.

• Bohr

• Democritus

• Rutherford

• Chadwick

These particles are found in the nucleus

• protons and electrons

• nucleus and neutrons

• protons and neutrons

• electrons and neutrons

Tags

NGSS.HS-PS1-8

Which of the following shows the correct order of Atomic Theory Timeline

• Rutherford, Bohr, Dalton, Democritus, Thomson

• Bohr, Democritus, Thomson, Rutherford, Dalton

• Dalton, Thomson, Rutherford, Bohr, Democritus

• Democritus, Dalton, Thomson, Rutherford, Bohr

Thomson Experimented with ______

• Gold Foil

• alpha particles

• cathode rays

• protons

James Chadwick discovered the ________.

• proton
• neutron
• electron
• nucleus

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

• Electron Shells
• Orbitals
• Electron Cloud
• Nucleus

Tags

NGSS.HS-PS1-8

Where electrons are likely to be found as they travel around the nucleus

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