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प्रश्न
The composition of the nuclei of three atomic species X, Y, and Z are given as follows.
| X | Y | Z | |
|---|---|---|---|
| Number of protons | 18 | 17 | 17 |
| Number of neutrons | 19 | 18 | 20 |
Explain the relation between the following:
Y and Z
स्पष्ट कीजिए
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उत्तर
Atomic species Y and Z are isotopes because they have the same number of protons (17) but different numbers of neutrons (18 and 20).
Their atomic number is 17, but their mass numbers are different:
- Y = 17 + 18 = 35
- Z = 17 + 20 = 37
Hence, Y and Z are isotopes of the same element, chlorine.
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