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Q: Which of the following statements is correct according to Dalton's method?
  • A. The molecules of the same elements have the same atomic mass and size but are not of the same chemical nature.
  • B. A molecule is divisible into a proton, electron and a neutron.
  • C. The atomic mass of molecules of the same elements is different.
  • D. Atoms are indivisible particles of matter.
Correct Answer: Option D - According to John Dalton's theory, "every substance is made up of small particles called atoms and atoms cannot be divided by any physical or chemical method." Dalton's atomic theory is based on the law of mass conservation and the law of fixed proportions. The main points of this theory are: • Each element is made up of smallest indivisible particles called atoms. • Atoms of different elements also have different properties. • The atom is inseparable.
D. According to John Dalton's theory, "every substance is made up of small particles called atoms and atoms cannot be divided by any physical or chemical method." Dalton's atomic theory is based on the law of mass conservation and the law of fixed proportions. The main points of this theory are: • Each element is made up of smallest indivisible particles called atoms. • Atoms of different elements also have different properties. • The atom is inseparable.

Explanations:

According to John Dalton's theory, "every substance is made up of small particles called atoms and atoms cannot be divided by any physical or chemical method." Dalton's atomic theory is based on the law of mass conservation and the law of fixed proportions. The main points of this theory are: • Each element is made up of smallest indivisible particles called atoms. • Atoms of different elements also have different properties. • The atom is inseparable.