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प्रश्न
For the symbol H, D and T tabulate three sub-atomic particles found in each of them.
उत्तर
| Symbol | Isotopes | Atomic no (Z) | Mass no. | No. of protons (p) | No. of electrons (e) | No. of neutrons (n) |
| H | Hydrogen | 1 | 1 | 1 | 1 | 0 |
| D | Deuterium | 1 | 2 | 1 | 1 | 1 |
| T | Tritium | 1 | 3 | 1 | 1 | 2 |
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संबंधित प्रश्न
Explain the Isotopes with example.
Name the Radioactive Isotope Which is Used in the Treatment of Cancer.
State one use of radioactive isotopes in industry.
Which of the following pairs are isotopes ? Give reasons for your choice :
(i) `""_26^58"A"`, `""_28^58"B"` or (ii) `""_35^79"X"`, `""_35^80"Y"`
Three different atoms of oxygen are represented as :
`""_8^16"O"`, `""_8^17"O"`, `""_8^16"O"`
(i) What do the subscripts (lower figures) and superscripts (upper figures) represent ?
(ii) What factor is responsible for the change in the superscripts 16, 17 and 18, though the element is the same ?
(iii) What is the usual name for such atoms of an element ?
(iv) Give the nuclear composition of `""_8^16"O"`.
According to Dalton’s Atomic Theory, atoms of the same element are identical in all respects. But according to the Modern Atomic Theory, this postulate is proved wrong. Explain.
Give the reason why isotopes have the same chemical but different physical properties.
State true or false. If false, correct the statement.
Isotopes of an element have different atomic numbers.
Isotopes of elements have the same chemical properties.
List the uses of isotopes.
