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AQA AS Physical Chemistry 2024 Exam Questions And Answers
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29
May 2024
2023/2024
A+
AQA AS Physical Chemistry 2024
Exam Questions And Answers
Who described atoms as solid spheres that make up different elements and when? -
ANSWER- John Dalton in the 19th century
Who suggested that atoms of a particular element had the same mass and atoms of
different elements had different masses and when? - ANSWER- John Dalton in 1803
Who discovered the electron and when? - ANSWER- JJ Thomson, 1897 discovered
electrons proving atoms weren't indivisible or solid.
New model named p...
Dennispeter
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