science
Grade-9
Easy
Question
The first atomic model was proposed by:
- Dalton
- J.J Thomson
- Both A and B
- Rutherford
Hint:
J J Thomson was the first one to discover the atomic model.
The correct answer is: J.J Thomson
- The first atomic model was proposed by J J Thomson in 1900.
- At the beginning of the 19th century, John Dalton brought up some ideas about atoms that had undergone many refinements.
- The theories of Dalton could not throw light on atomic structure.
- J J Thomson conducted several experiments with hydrogen atoms and finally discovered the atomic model.
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