Have an account?
Skip to Content
Build your own quiz
Suggestions for you
41 questions
Show Answers
See Preview
- 1. Multiple Choice
Whose model suggested that negative particles were mixed in with positively charged material - like seeds in a watermelon?
J.J. Thomson
Ernest Rutherford
Niels Bohr
Albert Einstein
- 2. Multiple Choice
Who discovered that the atom had an small, dense, positively charged center?
Ernest Rutherford
J.J Thomson
Robert Millikan
John Dalton
- 3. Multiple Choice
Place the following atomic models in order, from earliest to latest:
A) Rutherford B) Thomson C) Dalton
B, C, A
C, A, B
A, C, B
C, B, A
- 4. Multiple ChoiceWhat can you conclude from the fact that scientists continue to update the atomic model?New information about atoms continues to be discoveredOld information about atoms is completely uselessScientists did not have any information about atoms until a few years agoScientists still have no idea what atoms look like
- 5. Multiple Choice
Who named the positive center of the atom the "nucleus?"
Democritus
Dalton
Thomson
Rutherford
- 6. Multiple Choice
Which scientists believed an atom was indivisible? (Choose all correct responses.)
Democritus
Dalton
Thomson
Rutherford
- 7. Multiple Choice
Which scientist believed that elements differed from one another because their atoms had different mass?
Democritus
Dalton
Thomson
Rutherford
- 8. Multiple Choice
In the atomic model nicknamed the "plum pudding" model, what do the plums represent?
the nucleus
the atom
the electrons
the positive material
- 9. Multiple Choice
Which scientist proposed a new atomic model after discovering the electron in 1897?
Dalton
Thomson
Rutherford
Bohr
- 10. Multiple Choice
Who discovered that atoms are mostly empty space?
Dalton
Thomson
Rutherford
Bohr
- 11. Multiple Choice
In the model nicknamed "the solar system model" what are the electrons like?
the sun
the nucleus
the planets
the moon
- 12. Multiple Choice
Who proposed that electrons move around the nucleus in circular orbits?
Dalton
Thomson
Rutherford
Bohr
- 13. Multiple ChoiceThis model this model was the first to show a nucleus, consisting of protons and neutron. Electrons surround the nucleus but are not shown in distinct energy levels.The "Rutherford Model" of the atomThe "Plum Pudding Model" of the atomThe "Quantum Mechanical Modell" of the atomDemocritus's model of the atom
- 14. Multiple ChoiceThis was the first model of the atom ever proposed. It was simple and described atoms as tiny spheres that could not be broken down into smaller pieces.Democritus's model of the atomThe "Plum Pudding Model" of the atomThe "Rutherford Model" of the atomThe "Quantum Mechanical Model" of the atom
- 15. Multiple ChoiceThis model added on to previous models by showing electrons existed at certain "energy levels". However it does not accurately show what those levels look like.The "Bohr Model" of the atomThe "Rutherford Model" of the atomThe "Plumb Pudding Model" of the atomThe "Quantum Mechanical Model" of the atom
- 16. Multiple ChoiceThis model was developed after J.J. Thompson discovered electrons, a particle smaller than an atom. Is shows electrons floating freely in a positive space.The "Plum Pudding Model" of the atomThe "Rutherford Model" of the atomDemocritus's model of the atomThe "Quantum Mechanical Model" of the atom
- 17. Multiple ChoiceErnest Rutherford discovered that atoms were mostly _________________.negatively chargedpositively chargedelectronsempty space.
- 18. Multiple ChoiceWhat does the nucleus of an atom contain?Electrons & NeutronsProtons & NeutronsNeutrinos & Positrons
- 19. Multiple ChoiceIn the gold foil experiment, most of the positively charged alpha particles passed through the gold foil, but some were deflected or bounced back. What did we conclude because of this?Atoms are small indivisible spheresAtoms are mostly empty space with a small, dense, positive centerAtoms have negatively charged particles which orbit the nucleusLight is a wave, not a particle
- 20. Multiple ChoiceDiscovered the electron using cathode ray tubeJoseph ThomsonJohn DaltonErnest RutherfordRobert Millikan
- 21. Multiple ChoiceHis atomic model included a dense positive core in an atom, surrounded by negatively charged particlesJoseph ThomsonNiels BohrErnest Rutherford
- 22. Multiple ChoiceIdea was of an indivisible particle of matter he called "atomos"John DaltonAristotleDemocritusPlato
- 23. Multiple ChoiceWhat scientist is best known for his gold foil experiment?J.J. TomsonErnest RutherfordJohn DaltonDemocritus
- 24. Multiple Choice
An atom is electrically neutral because
the numbers of protons and neutrons are equal.
the numbers of protons and electrons are equal.
neutrons balance the protons and electrons.
- 25. Multiple Choice
Which of the following does the nucleus contain?
protons and electrons
neutrons and electrons
protons and neutrons
- 26. Multiple Choice
Which of the following statements is correct?
Protons are positively charged and neutrons are negatively charged.
Protons are negatively charged and electrons are positively charged.
Protons are positively charged and electrons are negatively charged.
- 27. Multiple Choice
Which model of the atom is denoted as the "plum pudding" model?
A
B
C
D
E
- 28. Multiple Choice
Chadwick is credited with discovering which part of the atom?
nucleus
protons
electrons
neutrons
- 29. Multiple Choice
Who is credited with developing model D?
Thomson
Dalton
Bohr
Rutherford
- 30. Multiple Choice
What is the meaning of the greek word "atomos"?
Invencible
Invisible
Indivisible
Independent
- 31. Multiple Choice
Which model of the atom is denoted as the "billiard ball" model?
A
B
C
D
E
- 32. Multiple Choice
Which model of the atom is denoted as the "electron cloud" model?
A
B
C
D
E
- 33. Multiple Choice
Which model of the atom is denoted as the "planetary" model?
A
B
C
D
E
- 34. Multiple ChoiceThe section labeled D is known as the?Electron cloudNeutronNucleusElectron
- 35. Multiple ChoiceLetter A Is positively charged particle called?NeutronProtonElectronAtom
- 36. Multiple ChoiceHow many electron shells does this atom have?1234
- 37. Multiple ChoiceHow many protons does this element have?6423
- 38. Multiple ChoiceThe smallest unit of matter is called?An electronAn elementAn atomA solid
- 39. Multiple Choice
What subatomic particles make up the nucleus of an atom?
electrons
protons
neutrons
leptons
mesons
- 40. Multiple Choice
Dalton's model of the atom is represented by which letter?
A
B
C
D
E
- 41. Multiple Choice
Where is number two pointing at?
Nucleus
Protons
Neutrons
Electron cloud
- Answer choicesTagsAnswer choicesTags