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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
In a periodic table the average atomic mass of magnesium is given as 24.312 u. The average value is based on their relative natural abundance on earth. The three isotopes and their masses are `""_12^24Mg` (23.98504u), `""_12^25 Mg` (24.98584u) and `""_12^26Mg` (25.98259u). The natural abundance of `""_12^24 Mg` is 78.99% by mass. Calculate the abundances of other two isotopes.
With the help of a suitable example and an equation, explain the term pair production.
The mass number of a nucleus is
Nuclides with same neutron number N but different atomic number Z are called ______.
Are the nucleons fundamental particles, or do they consist of still smaller parts? One way to find out is to probe a nucleon just as Rutherford probed an atom. What should be the kinetic energy of an electron for it to be able to probe a nucleon? Assume the diameter of a nucleon to be approximately 10–15 m.
Distinguish between isotopes and isobars.
Mass numbers of two nuclei are in the ratio of 4 : 3. Their nuclear densities will be in the ratio of ______.
The density of nuclear matter is:
The value of one atomic mass unit (1 u) is:
Isotopes have identical chemical behaviour because:
