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प्रश्न
The isotopes of an element contain :
विकल्प
same number of neutrons but different number of protons
same number of neutrons but different number of electrons
different number of protons as well as different number of neutrons
different number of neutrons but same number of protons
उत्तर
different number of neutrons but same number of protons
Isotopes are the atoms of the same element with the same atomic number but different mass numbers. It means that they have the same number of protons and electrons but different number of neutrons.
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संबंधित प्रश्न
State one use of radioactive isotopes in medicine.
State whether the following statement is true or false :
Radioactive isotope of iodine is used for making the medicine called tincture iodine.
Hydrogen has three isotopes written as :
`""_1^1"H"` `""_1^2"H"` `""_1^3"H"`
Explain why :
(i) these isotopes have almost identical chemical properties.
(ii) they are electrically neutral.
Give one example of isotopes.
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.
Identify the pairs which are not of isotopes?
(i) 126X, 136Y
(ii) 3517X, 3717Y
(iii) 146X, 147Y
(iv) 84X, 85Y
______ is a radioactive isotope present in our body.
The isotope was used to remove the brain tumor and treatment of Cancer in ______.
U-235 Isotope is used as ______.
Distinguish isotopes from isobar.
