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प्रश्न
What are isotopes?
एक पंक्ति में उत्तर
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उत्तर १
Isotopes are atoms of the same element that have the same atomic number but have different mass numbers.
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उत्तर २
Isotopes are atoms with the same number of protons and electrons but differ in the number of neutrons.
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Hydrogen - Evaluation [पृष्ठ १२३]
