Atomic Theory and Bohr Diagram Review

John Dalton stated:

• elements are made of atoms
• atoms of a given element are identical
• atoms cannot be subdivided, created, nor destroyed
• all of the above

The scientist responsible for "discovering" the nucleus is:

• Bohr
• Rutherford
• Schroedinger
• Einstein

The nucleus of an atom can be described as:

• spacious and negatively charged
• dense and positively charged
• spacious and positively charged
• dense and negatively charged

Tags

NGSS.HS-PS1-8

How did Rutherford discover the proton?

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

Tags

NGSS.HS-PS1-8

True or False: The majority of an atom is made up of empty space

• True
• False

Why has the atomic theory changed over time?

• Theories always change over time.

• The feelings of scientists changed over time.

• Other scientists interpreted Democritus' evidence differently.

• After new, relevant evidence emerged, scientists reevaluated the theory.

True or False? John Dalton believed that moving electrons exist in electron clouds around the nucleus. 

• False
• True 

What was the name of J.J Thomsons' model of atomic structure. 

• Electron Cloud Model 
• Electron Sea Model
• Plum Pudding Model 
• Bohr Model

What does the Bohr model suggest?

• Atoms are small, hard, indivisible objects. 
• That protons in the nucleus are attracted to electrons in the electron clouds. 
• That electrons travel around the nucleus of an atom in orbits or definite paths.

Who proposed that the atom consists mostly of empty space?

• Bohr
• Dalton
• Rutherford
• Chadwick