Atomic Theory & Structure Quiz

The scientist responsible for discovering the nucleus (or that the atom had a small dense positive core) is:

• Bohr

• Rutherford

• Schroedinger

• Einstein

Electrons are not factored into atomic mass because:

• They are so small their mass is negligible
• They're not in the nucleus
• They're too big
• They move so quickly their mass is zero

How did Rutherford discover the nucleus?

• Cathode Ray Tube experiment

• Gold Foil Experiment

• Planetary Model

• Plum Pudding Model

What does the nucleus of an atom contain?

• Electrons and neutrons

• Protons and neutrons

• Neutrinos and positrons

• DNA and RNA

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

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

Tags

NGSS.MS-PS1-1

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 that couldn't be divided. Atoms of the same element were exactly alike.

• He discovered that atoms had nuclei.

• He discovered that atoms could be divided into smaller parts.

Place the following scientists in order, from earliest to latest: 
Rutherford, Dalton, Bohr, Thomson

• Dalton, Rutherford, Bohr, Thomson
• Thomson, Dalton, Rutherford, Bohr
• Dalton, Thomson, Rutherford, Bohr
• Bohr, Dalton, Rutherford, Thomson

Tags

NGSS.MS-PS1-1

Who came up with the planetary model of an atom pictured above?

• J.J. Thompson

• Ernest Rutherford

• Neils Bohr

• James Chadwick

Who's model is this? 

• Millikan
• Rutherford
• Thomson
• Bohr

Tags

NGSS.HS-PS1-8

These particles have a mass of 1 amu

• protons and neutrons

• protons and electrons

• neutrons and electrons

• None of These