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प्रश्न
Define the following form:
Isotope
उत्तर
Isotopes are atoms that have the same atomic number but a different mass number. Isotopes have the same numbers of protons but different numbers of neutrons.
These are some common examples of isotopes:
- 2He, 4
- 2He, 12
- 6C, 14
- 6C, 235
- 92U, 239
- 92U, 289
संबंधित प्रश्न
For the symbol H, D and T tabulate three sub-atomic particles found in each of them.
An isotope of iodine is used for making tincture iodine, which is used as a medicine.
Give one example of a radioactive isotope which is used as a fuel in the reactors of nuclear power plants.
What is the reason for the different atomic masses of the isotopes of an element ?
What is the reason for the identical chemical properties of all the isotopes of an element ? Explain with the help of an example.
What is the reason for the slightly different physical properties of all the isotopes of an element ?
The radioactive isotope used in the treatment of cancer is :
The composition of two atomic particles is given below :
| X | Y | |
| Protons : | 8 | 8 |
| Neutrons : | 8 | 9 |
| Electrons : | 8 | 8 |
(i) What is the mass number of X ?
(ii) What is the mass number of Y ?
(iii) What is the relation between X and Y ?
(iv) Which element/elements do they represent ?
In two isotopic species, a number of protons is the same but the number of ______ is different.
Explain radioactive decay and radioactive isotopes.
