In Class Atomic Theory

This particle is found in the nucleus and has no charge

• Neutron
• Proton
• Electron
• Orbital

This particle is found in the nucleus and has a positive charge

• Electron
• Proton
• Neutron
• Neutral

This is a negatively charged particle found outside the nucleus

• Electron
• Proton
• Neutron
• Orbital

Who was the first person to propose matter was made of atoms?

• Democritus

• Rutherford

• Dalton

• Aristotle

Rutherford's gold foil experiment provided evidence that...

• Negative and positive charges are spread evenly throughout the atom.
• Alpha particles have a positive charge.
• Gold is not a dense as previously thought.
• There is a dense positively charged nucleus at the center of an atom.

Tags

NGSS.HS-PS1-8

What contribution did John Dalton make to atomic theory? 

• He discovered that every atom was positively charged. 
• He discovered that every element consisted of one type of atom.  
• He discovered that atoms had nuclei. 
• He discovered that atoms could be divided into smaller parts. 

What scientist first developed the Atomic Theory, and helped start modern chemistry?

• J.J. Tomson

• Ernest Rutherford

• John Dalton

• Democritus

What scientist is best known for his "Plum Pudding" model of the atom?

• J.J. Tomson
• Ernest Rutherford
• John Dalton
• Democritus

Tags

NGSS.MS-PS1-1

Who stated that all atoms of the same element are exactly alike?

• Democritus
• Dalton
• Thomson
• Borh

How did Rutherford discover the proton?

• Cathode tube ray experiment
• Gold Foil Experiment
• Planetary Model
• Plum Pudding Model

Tags

NGSS.HS-PS1-8