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प्रश्न
How does the existence of isotopes contradict Dalton’s atomic theory?
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उत्तर
- Atoms are not indivisible, they can be further divided into fundamental particles electrons, protons and neutrons.
- Every atom of an element is not identical. Isotopes are the atoms of same element with same atomic number but different mass number, that means they have same number of protons and electrons but differ in their number of neutrons.
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संबंधित प्रश्न
Give the following a suitable word/phrase.
The number of protons present in the nucleus of an atom.
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TRUE \ FALSE
Uranium-235 and uranium-238 both undergo nuclear fission.
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