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Q: Who proposed that all matters were composed of atoms, that are indivisible and indestructible building blocks?
  • A. Hans Geiger
  • B. John Dalton
  • C. J.J. Thomson
  • D. Ernest Rutherford
Correct Answer: Option B - According to John Dalton's atomic theory, each element is made up of very smallest particle, they cannot be seen by naked eyes and that are indivisible and indistructible is called an atom an atomic shapes properties of an element are similar but atomic size and properties are different.
B. According to John Dalton's atomic theory, each element is made up of very smallest particle, they cannot be seen by naked eyes and that are indivisible and indistructible is called an atom an atomic shapes properties of an element are similar but atomic size and properties are different.

Explanations:

According to John Dalton's atomic theory, each element is made up of very smallest particle, they cannot be seen by naked eyes and that are indivisible and indistructible is called an atom an atomic shapes properties of an element are similar but atomic size and properties are different.