6A Development of Atomic Theory

Who was the first person to come up with the idea of the atom?

• Democritus

• Aristotle

• Dalton

• Thomson

Who created the plum pudding model of the atom?

• Rutherford and the plums were protons

• Rutherford and the plums were electrons

• Thomson and the plums were protons

• Thomson and the plums were electrons

The cathode-ray tube was used to discover the ____ by ____.

• Electron by Thomson

• Electron by Ruthefeord

• Proton by Thomson

• Proton by Rutherford

Rutherford discovered there were three main types of radiation. Which of the three types was used in his famous gold foil experiment?

• alpha

• beta

• gamma

• all three types

Why did most of the radiation pass through the gold foil in the experiment?

• Nucleus is large and most of atom is empty space.

• Nucleus is large and little of atom is empty space.

• Nucleus is small and most of atom is empty space.

• Nucleus is small and little of atom is empty space.

Tags

NGSS.HS-PS1-3

NGSS.HS-PS4-3

Neils Bohr stated that electrons moved around the nucleus at fixed distances. This Bohr model was also called the

• Planetary model

• Plum Pudding model

• Nuclear model

• Quantum Mechanical Model

Created the concept of orbitals

• Heisenberg

• de Broglie

• Bohr

• Schrodinger

Which of the following places the models of the atom from most historic to most recent.

• solid sphere, plum pudding, nuclear, planetary, quantum mechanical

• solid sphere, plum pudding, planetary, quantum mechanical, nuclear

• plum pudding, nuclear, solid sphere, quantum mechanical, planetary

• plum pudding, solid sphere, planetary, quantum mechanical, nuclear

Discovered the nucleus of the atom through the Gold Foil Experiment

• Rutherford
• Chadwick
• Thomson
• Dalton

Tags

NGSS.HS-PS1-8

Proposed the Modern Electron Cloud Model of the atom

• Schrodinger & Heisenberg
• Dalton
• Chadwick
• Rutherford

Tags

NGSS.MS-PS1-1