Lesson 1 Quiz 8th grade Atoms

Who was the first person to study atomic theory?

• Dalton
• Democritus
• Chadwick
• Miller

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.

Was John Daltons theory earlier than Niels Bohr?

• No
• Yes

Who proposed that the atom consists mostly of empty space?

• Bohr
• Dalton
• Rutherford
• Chadwick

The word 'atomos' termed by Democritus means:

• Indivisible
• Unconscious
• Blue
• Nuclear powered

Earth, Air, Fire, and Water were the fundamental elements propose by ___.

• Aristotle
• Democritus
• Plato
• Galileo

Developed the “chocolate chip cookie” model of the atom

• James Chadwick
• Niels Bohr
• Schrodinger & Heisenberg
• J.J. Thomson

Developed the “billiard ball” model of the atom

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