Atomic Theory

Ernst Rutherford discovered which part of the atom through the use of gold foil?

• Proton
• Neutron
• Electron
• Orbitals

Tags

NGSS.HS-PS1-8

All matter is made of what?

• energy 
• atoms 
• electrons 
• compounds 

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

• Democritus
• Dalton
• Thomson
• Borh

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

Place the following scientists in order, from earliest to latest: 
A) Ernest Rutherford
B) J.J. Thomson
C) John Dalton

• B,C,A
• C,A,B
• A,C,B
• C,B,A

What is the smallest particle of an element?

• atom
• proton
• electron
• neutron

An atom's overall charge is ________.

• positive 
• depends
• neutral 
• negative 

Who came up with this model of an atom pictured?

• J.J. Thompson
• Ernest Rutherford
• Neils Bohr
• James Chadwick

Tags

NGSS.MS-PS1-1

How did Rutherford discover the proton?

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

Tags

NGSS.HS-PS1-8

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