Atomic Theory Timeline

Which of the following shows the correct order of Atomic Theory Timeline

• Rutherford, Bohr, Dalton, Democritus, Thomson

• Bohr, Democritus, Thomson, Rutherford, Dalton

• Dalton, Thomson, Rutherford, Bohr, Democritus

• Democritus, Dalton, Thomson, Rutherford, Bohr

First person to propose the concept of an atom

• Rutherford

• Democritus

• Dalton

• Bohr

Who proposed the theory that atoms orbit the nucleus in specific orbits.

• Bohr

• Democritus

• Rutherford

• Chadwick

A timeline of some models of atoms throughout history is shown. These models have contributed to the formation of the atomic theory. Which statement best summarizes the development of the atomic theory over time?

• The discovery of new evidence resulted in changes to the atomic theory.

• Advancements in atomic models proved the atomic theory was accurate.

• The atomic theory was modified with the discovery of every new element.

• Changes in atomic models showed that the atomic theory was based on opinion.

During the __________ scientists began to develop a theory as to how atoms work.

• 1600s

• 1700s

• 1800s

• 1900s

Who was considered the Father of Atomic Theory ?

• None of these

• Thomson

• Bohr

• Dalton

Who developed this early atomic theory?

All atomic structure was made up of atoms which he believed to be tiny, hard spheres.

• Bohr

• Dalton

• Rutherford

• J.J. Thomson

• Democritus

What scientist first developed 4 rules for atomic theory, and helped kick start modern chemistry?

• J.J. Thomson

• Ernest Rutherford

• John Dalton

• Democritus

Tags

NGSS.HS-PS1-7

Who was the first scientist to name atoms?

• Aristotle

• Democritus

• JJ Thomson

• Rutherford

Who developed the atomic theory? (a)  

• Dalton

• Thomson

• Chadwick

• Rutherford