Question

define isotopes and isobars write three application of isotopes

Answer 1

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Isotopes - These are the elements which have the same atomic number but different mass numbers I.e the number of neutrons varies.
Eg- The isotopes of Hydrogen => Protium (mass no. = 1) , Deuterium (mass no. = 2) and tritium (mass no. = 3).

Isobars - These are the elements with same mass number but different atomic number are refered to as Isobars.
E.g.- Calcium atomic no. 20 and argon atomic no. 18. Both of them have different atomic no. but their mass no. is same I.e mass no. = 40.

APPLICATIONS OF ISOTOPES:

1. An isotope of uranium is used in nuclear plants.
2. An isotope of cobalt is used to treat cancer.
3. An isotope of iodine is used to treat goitre.
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Answer 2

Isotopes - These are the elements which have the same atomic number but different mass numbers I.e the number of neutrons varies.

Eg- The isotopes of Hydrogen => Protium (mass no. = 1) , Deuterium (mass no. = 2) and tritium (mass no. = 3).

Isobars - These are the elements with same mass number but different atomic number are refered to as Isobars.

E.g.- Calcium atomic no. 20 and argon atomic no. 18. Both of them have different atomic no. but their mass no. is same I.e mass no. = 40.

APPLICATIONS OF ISOTOPES:

1. An isotope of uranium is used in nuclear plants.

2. An isotope of cobalt is used to treat cancer.

3. An isotope of iodine is used to treat goitre