Chem: Atoms and Isotopes

Which scientist developed the atomic theory?

• JJ Thomson
• Ernest Rutherford
• John Dalton
• James Chadwick

Electron cloud is based on

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

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

He developed the planetary model of the atom.

• Rutherford
• Bohr
• Chadwick
• Dalton

Who believed that all matter is made up of small particles called atoms?

• Dalton
• Rutherford
• Bohr
• Chadwick

What did Thomson discover?

• electron
• proton
• neutron
• electron cloud

The Gold Foil experiment was done by __________.

• Chadwick
• Bohr
• Rutherford
• Thomson

Tags

NGSS.HS-PS1-8

Model of the atom where electrons orbit the nucleus in energy levels

• Thomson

• Rutherford

• Bohr

• Dalton

Greek philosopher that came up with the concept of "atomos"

• Democritus

• Dalton

• Thomson

• Schrodinger

Discovered the nucleus of the atom

• Dalton

• Thomson

• Rutherford

• Bohr

Chocolate chip cookie (plum pudding) model

• Dalton

• Thomson

• Rutherford

• Bohr