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प्रश्न
Two nuclei have different mass numbers A1 and A2. Are these nuclei necessarily the isotopes of the same element? Explain.
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उत्तर
No, Only when the two nuclei have the same atomic number then they are known as isotopes. Otherwise, they may be isobars also. Isobars have the same mass numbers.
संबंधित प्रश्न
Boron has two stable isotopes, `""_5^10"B"` and `""_5^11"B"`. Their respective masses are 10.01294 u and 11.00931 u, and the atomic mass of boron is 10.811 u. Find the abundances of `""_5^10"B"` and `""_5^11"B"`.
If neutrons exert only attractive force, why don't we have a nucleus containing neutrons alone?
The mass number of a nucleus is
The atomic mass of Uranium `""_92^238"U"` is 238.0508 u, while that of Thorium `""_90^234"Th"` is 234.0436u, and that of Helium `""_2^4"He"` "is 4.0026u. Alpha decay converts `""_92^238"U"` into `""_92^234"Th"` as, shown below:
`""_92^238"U" -> ( ""_90^234"Th" + ""_2^4"He" + "Energy" )`
\[\ce{^197_79Au}\] contains ______.
A nucleus yYx emits one α and two β particles. The resulting nucleus is ______.
Before the neutrino hypothesis, the beta decay process was throught to be the transition, `n -> p + vece`. If this was true, show that if the neutron was at rest, the proton and electron would emerge with fixed energies and calculate them. Experimentally, the electron energy was found to have a large range.
Mass numbers of two nuclei are in the ratio of 4 : 3. Their nuclear densities will be in the ratio of ______.
The volume occupied by an atom is greater than the volume of the nucleus by a factor of about:
1 amu is defined as:
