History of the Atom

What was Thomson's model known as?

• Thomson's atom model

• Thomson pudding model

• Thomson plum pudding model

• Plum pudding model

Whose theory came first: Thomson, Dalton, Rutherford

• Rutherford

• Dalton

• Thomson

Which of the following best demonstrate Dalton's Atomic Theory?

• 
• 
• 

Tags

NGSS.HS-PS1-7

Within Dalton's Atomic Theory, he had proposed...

• Atoms were the smallest particles that existed and could be divisible

• Atoms were the smallest particles that existed and were round

• Atoms were the smallest particles that existed and could not be divisible

In Thomson's theory, he proposed...

• Atoms can be divisible, into smaller particles

• Atoms cannot be divisible, but have smaller particles inside

• Everything is made up of atoms

Tags

NGSS.MS-PS1-1

Thomson discovered that there were negative charged particles within an atom called...

• Electrons

• Protons

• Neutrons

What are the 2 differently charged particles within an atom?

• Protons & neutrons

• Protons & nucleus

• Protons & Electrons

• Electrons & Neutrons

Tags

NGSS.MS-PS1-1

Within Thomson's Plum Pudding Model, what did he suggest were the "cake" and the "fruit"?

• Cake = positively charged material; Fruit = electrons

• Cake = electrons; Fruit = positively charged material

What did Rutherford predict would happen in the Gold Foil experiment?

• The alpha particles would not all pass through the gold foil and rebound back

• The alpha particles would not pass through the gold foil at all

• The alpha particles would pass right through the gold foil with no resistance

Rutherford's model of the atom suggests that the electrons...

• orbit around the nucleus in 3D

• orbit around the nucleus in a circle

• are inside the nucleus