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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
Write one balanced equation to show Emission of `beta^-` (i.e. a negative beta particle)
If neutrons exert only attractive force, why don't we have a nucleus containing neutrons alone?
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" )`
Find the Q-value and the kinetic energy of the emitted α-particle in the α-decay of `""_86^220"Rn"`.
Given `"m"(""_88^226"Ra")` = 226.02540 u, `"m"(""_86^222 "Rn")` = 222.01750 u,
`"m"(""_86^220 "Rn")`= 220.01137 u, `"m"(""_84^216 "Po")`= 216.00189 u.
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The nuclei of isotopes of a given element contain the same number of ______.
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Two cars of mass m1 and m2 are moving in circles of radii r1 and r2, respectively. Their speeds are such that they make complete circles at the same time t. The ratio of their centripetal acceleration is:
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What conclusion is drawn from Rutherford’s scattering experiment of α-particles?
