12 Questions
What did E. Goldstein discover in 1886?
New radiations in a gas discharge
What is the mass of a proton compared to an electron?
Approximately 2000 times more
What is the charge of an electron?
Negative
How are protons and electrons represented?
'p' for protons, 'e' for electrons
What was the big question regarding the structure of the atom?
The structure formed by the particles in the atom
What is the charge of a proton?
Positive
What was one of the first indications that atoms are not indivisible?
Studying static electricity and the conduction of electricity by different substances
What is the main focus of Chapter 4 in the text?
The nature and arrangement of sub-atomic particles within the atom
What is the primary purpose of the activities mentioned in the text?
To understand how atoms become electrically charged
Why was it known by 1900 that atoms are not indivisible?
As a result of studying static electricity and the conduction of electricity by different substances
What was one of the major challenges before scientists in understanding the nature of charged particles?
Revealing the presence of positively charged radiations
What makes the atom of one element different from the atom of another element?
The number and arrangement of sub-atomic particles
Test your knowledge on the structure of atoms and sub-atomic particles. Explore concepts related to the differences between atoms of different elements and the proposed models to explain atomic structure.
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