History of the Atom

Who first had the idea of the atom?

• Democritus

• Dalton

• Rutherford

• Thompson

Who first had evidence of the atom?

• Democritus
• Dalton
• Rutherford
• Thompson

Who discovered the electron?

• Bohr
• Dalton
• Rutherford
• Thompson

Who discovered the positive nucleus?

• Bohr
• Dalton
• Rutherford
• Thompson

Tags

NGSS.HS-PS1-8

In Rutherford's model electrons are....

• ...dispersed in a positive soup
• ...evenly spaced around the nucleus
• ...found at different energy levels
• ...found in clouds surrounding the nucleus

In Bohr's model electrons are....

• ...dispersed in a positive soup
• ...evenly spaced around the nucleus
• ...found at different energy levels
• ...found in clouds surrounding the nucleus

In Thompson's model electrons are....

• ...dispersed in a positive soup
• ...evenly spaced around the nucleus
• ...found at different energy levels
• ...found in clouds surrounding the nucleus

Schrödinger refined Bohr's model by saying electrons are...

• ...dispersed in a positive soup
• ...evenly spaced around the nucleus
• ...found at different energy levels
• ...found in clouds surrounding the nucleus

Thought atoms were indestructible 

• Dalton
• Rutherford
• Thompson
• Bohr

Tags

NGSS.HS-PS1-7

Plum Pudding

• Dalton
• Rutherford
• Thompson
• Bohr