Advertisements
Advertisements
प्रश्न
(a) What are isotopes ? Explain by giving an example.
(b) Give one similarity and one difference between a pair of isotopes.
(c) Give the number of protons, neutrons and electrons per atom in the two isotopes of chlorine `""_17^35"Cl"` and `""_17^35"Cl"`.
उत्तर
(a) Isotopes are the atoms of the same element with the same atomic number but different mass numbers. It means that the isotopes have same number of electrons and protons but different number of neutrons. For example, hydrogen has three isotopes- protium, deuterium and tritium .
Here, all three of them have same atomic number i.e. 1 but different mass numbers.
(b) Similarity –A pair of isotopes have the same atomic number.
Difference – A pair of isotopes have different mass numbers.
(c) In `""_17^35"Cl"`, there are 17 protons, 17 electrons and 18 neutrons.
In `""_17^35"Cl"`, there are 17 protons, 17 electrons and 20 neutrons.
APPEARS IN
संबंधित प्रश्न
For the symbol H, D and T tabulate three sub-atomic particles found in each of them.
Give any two uses of isotopes.
What is the relationship between an atom containing 11 protons, 11 electrons and 11 neutrons, and another atom containing 11 protons, 11 electrons and 12 neutrons?
What is the reason for the identical chemical properties of all the isotopes of an element ? Explain with the help of an example.
Name the atoms of a substance having same atomic number, but different mass numbers. Give one example of such a substance. How do the structures of such atoms differ?
Name the radioactive isotope used to find the age of fossils. Name the radioactive radiation which it emits?
The isotope was used to remove the brain tumor and treatment of Cancer in ______.
Isotopes of elements have the same chemical properties.
Explain radioactive decay and radioactive isotopes.
Distinguish isotopes from isobar.
