History of the atomic model

Used the word "atomos" to decsribe the uncuttable (indivisible) atom.

• Democritus

• Thomson

• Bohr

• Dalton

Proposed that electrons move around the nucleus in specific layers, or shells.

• Bohr

• Rutherford

• Chadwick

• Thomson

Tags

NGSS.HS-PS1-1

This picture best represents ___________________ atomic model.

• Thomson's

• Dalton's

• Bohr's

• Chadwick's

Tags

NGSS.HS-PS1-8

Which one of these is Dalton's Model?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-7

Which model was created after the discovery of the nucleus?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-8

Which model was created after the discovery of the electron cloud?

• 
• 
• 
• 

Who discovered electrons?

• Rutherford

• Bohr

• J.J. Thompson

• Democritus

Ernest Rutherford discovered that the atom was mostly _________________ and has a _______________ charged nucleus.

• empty space, positively
• empty space, negatively
• full of protons, positively
• full of neutrons, negatively

Tags

NGSS.HS-PS1-8

Within Dalton's Atomic Theory, he had proposed...

• Atoms were the smallest particles that existed and could be divisible

• Atoms were the smallest particles that existed and were round

• Atoms were the smallest particles that existed and could not be divisible

Which scientist proposed that all matter is composed of atoms, which he assumed were indivisible and indestructible building blocks of nature.

• J. J. Thompson
• John Dalton
• Neils Bohr
• Ernest Rutherford