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Questions and Answers
Questions and Answers
What occurs when atoms gain or lose electrons to increase their stability?
What occurs when atoms gain or lose electrons to increase their stability?
- They lose their reactivity
- They become charged entities called ions (correct)
- They form a chemical bond
- They become neutral
What is the primary reason for the unique characteristics of different elements?
What is the primary reason for the unique characteristics of different elements?
- The different atomic masses of their atoms
- The different numbers of protons and electrons in their atoms (correct)
- The number of electrons in their atoms
- The number of neutrons in their atoms
Which scientist's work led to the discovery of subatomic particles?
Which scientist's work led to the discovery of subatomic particles?
- John Dalton
- J.J. Thomson (correct)
- Niels Bohr
- Ernest Rutherford
What is the purpose of the vacuum pump in the cathode ray experiment?
What is the purpose of the vacuum pump in the cathode ray experiment?
What is the result of chemical reactions according to Dalton's atomic theory?
What is the result of chemical reactions according to Dalton's atomic theory?
What is the significance of Dalton's atomic theory?
What is the significance of Dalton's atomic theory?
What is the main function of electrons in an atom?
What is the main function of electrons in an atom?
Who is credited with proposing the first scientific theory of atomic structure?
Who is credited with proposing the first scientific theory of atomic structure?
What is the atomic number of an element determined by?
What is the atomic number of an element determined by?
Which of the following is NOT a component of the atomic structure of matter?
Which of the following is NOT a component of the atomic structure of matter?
What is the significance of the study of atomic structure?
What is the significance of the study of atomic structure?
What is the characteristic of a neutral atom?
What is the characteristic of a neutral atom?
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