Podcast
Questions and Answers
Who identified the electron in the atom?
Who identified the electron in the atom?
J.J. Thomson
What did E. Goldstein discover in 1886, which ultimately led to the discovery of another sub-atomic particle?
What did E. Goldstein discover in 1886, which ultimately led to the discovery of another sub-atomic particle?
E. Goldstein discovered canal rays, which were positively charged radiations.
What is the charge and mass of a proton?
What is the charge and mass of a proton?
Charge: plus one, Mass: approximately 2000 times that of the electron
How is an electron represented?
How is an electron represented?
What did J.J. Thomson propose about the structure of an atom?
What did J.J. Thomson propose about the structure of an atom?
What is the charge and mass of an electron?
What is the charge and mass of an electron?
What did the discovery of electrons and protons inside the atom lead to?
What did the discovery of electrons and protons inside the atom lead to?
What were some of the questions that arose regarding atoms and molecules?
What were some of the questions that arose regarding atoms and molecules?
What were the first indications that atoms are not indivisible?
What were the first indications that atoms are not indivisible?
What was the major challenge before the scientists at the end of the 19th century?
What was the major challenge before the scientists at the end of the 19th century?
What did E. Goldstein discover in 1886, which ultimately led to the discovery of another sub-atomic particle?
What did E. Goldstein discover in 1886, which ultimately led to the discovery of another sub-atomic particle?
What is the charge and mass of a proton?
What is the charge and mass of a proton?
Who identified the electron in the atom?
Who identified the electron in the atom?
What did J.J. Thomson propose about the structure of an atom?
What did J.J. Thomson propose about the structure of an atom?
What were the first indications that atoms are not indivisible?
What were the first indications that atoms are not indivisible?
What did the discovery of electrons and protons inside the atom lead to?
What did the discovery of electrons and protons inside the atom lead to?
What was the major challenge before the scientists at the end of the 19th century?
What was the major challenge before the scientists at the end of the 19th century?
What did J.J. Thomson propose about the structure of an atom?
What did J.J. Thomson propose about the structure of an atom?
Which aspect of Dalton’s atomic theory was affected by the discovery of electrons and protons inside the atom?
Which aspect of Dalton’s atomic theory was affected by the discovery of electrons and protons inside the atom?
What did we learn in Chapter 3 about atoms and molecules?
What did we learn in Chapter 3 about atoms and molecules?
Flashcards
Who discovered the electron?
Who discovered the electron?
J.J. Thomson discovered the existence of electrons, negatively charged subatomic particles, within the atom.
What led to the discovery of the proton?
What led to the discovery of the proton?
E. Goldstein's discovery of canal rays, positively charged radiations, provided evidence of another subatomic particle - the proton.
Describe the properties of a proton.
Describe the properties of a proton.
A proton carries a positive charge (+1) and is significantly heavier than an electron, approximately 2000 times its mass.
How is an electron represented?
How is an electron represented?
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What was Thomson's model of the atom?
What was Thomson's model of the atom?
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What are the properties of an electron?
What are the properties of an electron?
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How did the discovery of subatomic particles impact Dalton's theory?
How did the discovery of subatomic particles impact Dalton's theory?
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What questions arose after the discovery of subatomic particles?
What questions arose after the discovery of subatomic particles?
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What were the first indications that atoms are not indivisible?
What were the first indications that atoms are not indivisible?
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What was the challenge faced by scientists at the end of the 19th century?
What was the challenge faced by scientists at the end of the 19th century?
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What did E. Goldstein discover in 1886?
What did E. Goldstein discover in 1886?
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What is the charge and mass of a proton?
What is the charge and mass of a proton?
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Who identified the electron?
Who identified the electron?
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What was J.J. Thomson's model of the atom?
What was J.J. Thomson's model of the atom?
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What was the first evidence of atoms being divisible?
What was the first evidence of atoms being divisible?
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What did the discovery of subatomic particles do to Dalton's theory?
What did the discovery of subatomic particles do to Dalton's theory?
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What was the challenge faced by scientists at the end of the 19th century?
What was the challenge faced by scientists at the end of the 19th century?
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What did J.J. Thomson propose about the structure of an atom?
What did J.J. Thomson propose about the structure of an atom?
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Which aspect of Dalton’s atomic theory was challenged by the discovery of subatomic particles?
Which aspect of Dalton’s atomic theory was challenged by the discovery of subatomic particles?
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What did we learn in Chapter 3 about atoms and molecules?
What did we learn in Chapter 3 about atoms and molecules?
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