Famous Chemists

Which model is this?

• Planetary
• Plum Pudding
• Nuclear
• solid sphere

Tags

NGSS.HS-PS1-8

Heisenberg's uncertainty principle states that you are uncertain of an element's what?

• location and speed
• location and ring
• direction and speed
• model and speed

What did Planck work on?

• quantum theory
• nuclear chemistry
• uncertainty principle
• wave theory

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

What is Democritus known for?

• atomos
• combining and separating atoms
• saying the atom is empty space
• saying electrons orbit on specific paths

What is Bohr known for?

• atomos
• combining and separating atoms
• saying the atom is empty space
• saying electrons orbit on specific paths

Which Scientist came up with the NUCLEAR model?

• Dalton & Democritus

• Rutherford

• Thompson& Milliken

• Heisenberg & De Broglie

Tags

NGSS.HS-PS1-8

Who discovered the electron and when ?

• James Chadwick in 1897
• Rutherford in 1909
• JJ Thompson in 1897
• Marie Lavoisier in 1970

Who discovered the Atomic Theory and when did they do it?

• Millikan in 1808
• John Dalton in 1790
• Democritus in 4th century BC
• John Dalton  in 1808

Who discovered the nucleus and when ?

• James Chadwick in 1897
• Rutherford in 1909
• JJ Thompson in 1897
• Rutherford in 1911

Who discovered the Law of Conservation of Mass and when?

• James Chadwick in 1897
• Lavoisier in 1790
• JJ Thompson in 1897
• Rutherford in 1911

Tags

NGSS.HS-PS1-7