History of the Atom and Basic Atomic Structure

Which scientist emitted alpha particles at gold foil for his experiment?

• Dalton
• Bohr
• Rutherford
• Thomson

Which scientist proposed the idea that electrons orbit the nucleus in set energy levels? 

• Bohr
• Dalton
• Rutherford
• Thomson

The Bohr model is also sometimes called the

• Quantum Mechanical Model
• Billiard Ball Model
• Planetary Model
• Plum Pudding Model

The name of the scientist that came up with the plum pudding (or chocolate chip cookie) model is

• Thomson
• Rutherford
• Bhor
• Dalton

The model of the atom that scientists use today is?

• Billiard Ball Model
• Plum Pudding Model
• Quantum mechanical model
• Planetary model

In the cathode ray tube experiment, the beam moved ________ the positive side of a magnet proving that it was made of _________.  

• away from, positive particles
• toward, positive particles
• away from, negative particles
• toward, negative particles

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

In the gold foil experiment, most of the positively charged alpha particles passed through the gold foil, but some were deflected or bounced back.  What did this prove?  

• Atoms are small indivisible spheres
• Atoms are mostly empty space with a small, dense, positive center
• Atoms have negatively charged particles which orbit the nucleus
• Light is a wave, not a particle

Tags

NGSS.HS-PS1-8

Who is credited with developing the atomic theory?  (Sometimes called the father of atomic theory)

• John Dalton
• J. J. Thomson
• Earnest Rutherford
• Niels Bohr

Which of the following parts of Dalton's atomic theory were disproved by the cathode ray tube experiment?  

• Atoms combine in fixed ratios to form compounds
• All atoms of an element are identical in mass, structure, and properties
• Matter cannot be created or destroyed
• Matter is made of small, indivisible particles called atoms

Which of the following parts of Dalton's atomic theory were disproved by the discovery of the neutron?  

• Atoms combine in fixed ratios to form compounds
• All atoms of an element are identical in mass, structure, and properties
• Matter cannot be created or destroyed
• Matter is made of small, indivisible particles called atoms

Tags

NGSS.HS-PS1-8