Atomic History & Structure

Who was the first person to think of an atom?

• Democritus

• Dalton

• Rutherford

• Bohr

What does "atomos" mean?

• tiny

• carbon

• uncuttable

• invisible

Whose model was a small sphere with a hard shell (billiard ball)?

• Democritus

• Dalton

• Rutherford

• Bohr

Who developed the Plum Pudding Model (Chocolate Chip Cookie Model)?

• Democritus

• Thomson

• Rutherford

• Einstein

Who found out atoms are mostly empty space?

• Democritus

• Thomson

• Rutherford

• Einstein

What is the dense, positively charged center of an atom called?

Who said that atoms move around the nucleus in certain paths and came up with the Solar System Model?

• Democritus

• Thomson

• Rutherford

• Bohr

What is the modern (current) model of the atom called?

• Electron Cloud Model

• Solar System Model

• Plum Pudding Model

• Billiard Ball Model

What are the positively charged particles in the nucleus called?

What are the particles with no charge called?

Tags

NGSS.HS-PS1-8