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ICSE Class 9 Chemistry Question 23 of 39

Atomic Structure and Chemical Bonding — Question 35

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35
Question

Question 21

Give the use of the following isotopes:

(a) Radioactive isotopes

(b) 235U

(c) 60Co

(d) 131I

(e) 14C

Answer

(a) Radioactive isotopes — Used in industry to detect the leakage in underground oil pipelines, gas pipelines and water pipelines.

(b) 235U — Used as fuel in nuclear reactors.

(c) 60Co — used in radiotherapy for treating cancer and other diseases.

(d) 131I — Used in treatment of goitre.

(e) 14C — Used for determining the age of historical and geological material.