Atomic Theory and Atomic Structure

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

Tags

NGSS.HS-PS1-8

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

Discovered the electron within the atom

• Thomson
• Chadwick 
• Schrodinger & Heisenberg
• Dalton

Created the Planetary Model of the atom

• Bohr
• Dalton
• Rutherford
• Chadwick

Discovered the neutron within the atom

• Democritus
• Thomson
• Rutherford
• Chadwick

Tags

NGSS.HS-PS1-8

Believed that atoms of the same element are identical to each other

• Bohr
• Rutherford
• Dalton
• Thomson

Most of the volume an atom is made of this

• the nucleus
• the protons
• the neutrons
• empty space

The charge of the nucleus of all atoms or ions

• positive
• negative
• neutral
• sometimes positive and sometimes negative

Tags

NGSS.HS-PS1-8

The overall charge of all atoms (not ions)

• positive
• negative
• neutral
• sometimes positive and sometimes negative