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Questions and Answers
What was the name given to the rays produced by electrons striking a material in the cathode ray tubes?
What was the name given to the rays produced by electrons striking a material in the cathode ray tubes?
- X-rays (correct)
- Röentgen rays
- Cathode rays
- Anode rays
What was the radius of the atom according to Thomson's model?
What was the radius of the atom according to Thomson's model?
- 10^3 m
- 10^(-20) m
- 10^(-10) m (correct)
- 10^(-5) m
What was the arrangement of electrons in Thomson's model of the atom?
What was the arrangement of electrons in Thomson's model of the atom?
- Electrons were embedded in a uniform distribution of positive charge (correct)
- Electrons were arranged in a linear pattern
- Electrons were arranged in a random manner
- Electrons were arranged in a circular pattern
What was the assumption about the mass of the atom in Thomson's model?
What was the assumption about the mass of the atom in Thomson's model?
What was the limitation of Thomson's model?
What was the limitation of Thomson's model?
What was the significance of Röentgen's discovery in 1895?
What was the significance of Röentgen's discovery in 1895?
What is the Greek word from which the term 'atom' has been derived?
What is the Greek word from which the term 'atom' has been derived?
Who among the following ancient philosophers proposed the existence of atoms?
Who among the following ancient philosophers proposed the existence of atoms?
What is the name of the scientist who proposed the model of an atom in which an atom is like a sphere of positively charged matter with negatively charged electrons embedded in it?
What is the name of the scientist who proposed the model of an atom in which an atom is like a sphere of positively charged matter with negatively charged electrons embedded in it?
What are the three fundamental particles that make up an atom?
What are the three fundamental particles that make up an atom?
In the Thomson model of an atom, what is the negatively charged particle embedded in the positively charged sphere?
In the Thomson model of an atom, what is the negatively charged particle embedded in the positively charged sphere?
What was the limitation of the ancient philosophical ideas about atoms?
What was the limitation of the ancient philosophical ideas about atoms?
What was the major flaw in Thomson's model of the atom as revealed by Rutherford's gold foil experiment?
What was the major flaw in Thomson's model of the atom as revealed by Rutherford's gold foil experiment?
What is the approximate size of the nucleus compared to the atom?
What is the approximate size of the nucleus compared to the atom?
What is the primary region of the atom where most of the mass and positive charge are concentrated?
What is the primary region of the atom where most of the mass and positive charge are concentrated?
What is the analogy used to describe the structure of the atom in Rutherford's model?
What is the analogy used to describe the structure of the atom in Rutherford's model?
What was the key observation that led Rutherford to propose the nuclear model of the atom?
What was the key observation that led Rutherford to propose the nuclear model of the atom?
What is the approximate size of the atom's radius if a cricket ball represents the nucleus?
What is the approximate size of the atom's radius if a cricket ball represents the nucleus?
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