Question
Download Solution PDFArgon gas is generated due to decay of which among the following isotope
This question was previously asked in
SDSC ISRO Technical Assistant Mechanical 4 June 2022 Official Paper
Answer (Detailed Solution Below)
Option 1 : K - 40
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Download Solution PDFExplanation:
- Argon gas is generated due to the decay of the isotope K-40.
- When K-40 undergoes radioactive decay, it can decay into either calcium-40 (Ca-40) or argon-40 (Ar-40). Since argon is a noble gas and does not react easily with other elements, it tends to remain in the atmosphere for long periods of time. As a result, the ratio of argon-40 to other isotopes of argon can be used to determine the age of rocks and minerals through a process called potassium-argon dating.
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