Chemistry UNIT 1 Study Tool From Study Guide

Who was the Greek philosopher who called the smallest particle of matter as "atom"?

• Democritus

• Aristotle

• J.J Thompson

• Einstein

Who is accredited for naming the atom?

• Dalton

• Thomson

• Democritus

• Bohr

Who discovered the electron?

• Rutherford

• Dalton

• Bohr

• Thomson

Who was able to prove that the atom had a nucleus?

• Heisenberg

• Bohr

• Plato

• Rutherford

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NGSS.HS-PS1-8

Believed that atoms are small, hard particles that were "indivisible"

• Democritus
• Aristotle
• Schrodinger
• Greek Philosophers

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NGSS.HS-PS1-7

Discovered that the atom has a small, dense, positively charged nucleus.

• Ernest Rutherford
• Heisenberg
• Democritus
• JJ Thomson

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NGSS.HS-PS1-8

In the atomic model nicknamed the "plum pudding" model, what do the plums represent?

• the nucleus

• the atom

• the electrons

• the positive material

Tags

NGSS.MS-PS1-1

In the atomic model nicknamed the "plum pudding" model, which scientist is credited with creating that model.

• JJ Thomson

• Ernest Rutherford

• John Dalton

• James Chadwick

Which of the following is/are conclusions based on Rutherford’s gold foil experiment?

• Atom is mostly empty space

• The nucleus is positively charged

• The atom has a small dense nucleus

• All answers are correct

J.J. Thomson provided evidence that an atom...

• is the smallest particle of matter
• contains negatively charged particles
• has an overall negative charge
• has an overall positive charge

Tags

NGSS.MS-PS1-1