Quiz # 3 - Structure Of The Atom
12 Questions
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For each statement below, choose true or false. Read carefully! (El password esta dado arriba. ) Cuando termines de poner la contestacion, Presiona el boton SUBMIT MY ANSWER, y te lleva a la segunda pregunta.
Questions and Answers
- 1.Both Democritus and Dalton suggested that matter is made up of atoms.
- A.
False
- B.
True
- 2.Dalton thought that all stoms of a specific element have the same mass.
- A.
True
- B.
False
- 3.Daton's atomic theory stated that matter is mostly empty space.
- A.
False
- B.
True
- 4.Dalton's atomic theory stated that atoms separate, combine, or rearrange in chemical reations.
- A.
False
- B.
True
- 5.There is no instruments powerful enough to magnify atoms so that they can be seen.
- A.
True
- B.
False
- 6.Ancient philosophers regularly performed controlled experiments.
- A.
True
- B.
False
- 7.The smallest particle of an element that retains the properties of that element is called an atom.
- A.
True
- B.
False
- 8.Philosophers formulated explanations about the nature of matter based on their own experiences.
- A.
False
- B.
True
- 9.Dalton's atomic theory stated that atoms of different elements combine in simple whole-number ratios to form compounds.
- A.
True
- B.
False
- 10.Dalton was correct in thinking that atoms could not be divided into smaller particles.
- A.
True
- B.
False
- 11.Democritus proposed that atoms are held together by chemical bonds, but no one believed him.
- A.
False
- B.
True
- 12.Dalton's atomic theory was based on careful measurements and extensive research.
- A.
True
- B.
False
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