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Questions and Answers
Which one of the following is a postulate of Dalton's atomic theory?
Which one of the following is a postulate of Dalton's atomic theory?
- Each element is composed of extremely small particles called atoms.
- Compounds are formed when atoms of more than one element combine; a given compound always has the same relative number and kind of atoms.
- All atoms of a given element are identical; the atoms of different elements are different and have different properties. (correct)
- Atoms of an element are not changed into different types of atoms by chemical reactions: atoms are neither created nor destroyed in chemical reactions.
- Atoms are composed of protons, neutrons, and electrons.
Which one of the following is not a postulate of Dalton's atomic theory?
Which one of the following is not a postulate of Dalton's atomic theory?
- Each element is composed of extremely small particles called atoms.
- All atoms of a given element are identical; the atoms of different elements are different and have different properties.
- Atoms of an element are not changed into different types of atoms by chemical reactions: atoms are neither created nor destroyed in chemical reactions.
- Atoms are composed of protons, neutrons, and electrons. (correct)
- Compounds are formed when atoms of more than one element combine; a given compound always has the same relative number and kind of atoms.
Which one of the following correctly describes the responses of alpha, beta, and gamma radiation to an electric field?
Which one of the following correctly describes the responses of alpha, beta, and gamma radiation to an electric field?
- Both beta and gamma are deflected in the same direction, while alpha shows no response.
- Both alpha and gamma are deflected in the same direction, while beta shows no response.
- Both alpha and beta are deflected in the same direction, while gamma shows no response. (correct)
- Alpha, beta, and gamma show no response to an electric field.
- Alpha, beta, and gamma are all deflected in the same direction.
Which one of the following is not a correct statement about alpha, beta, and gamma radiation?
Which one of the following is not a correct statement about alpha, beta, and gamma radiation?
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Which one of the following correctly describes the formation of compounds according to Dalton's atomic theory?
Which one of the following correctly describes the formation of compounds according to Dalton's atomic theory?
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