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A certain nuclide has a half life period...

A certain nuclide has a half life period of 30 min. If a sample containing 600 atoms is allowed to decay for 90 min, how many atoms will remains?

A

200 atoms

B

450 atoms

C

75 atoms

D

150 atoms

Text Solution

Verified by Experts

The correct Answer is:
C
`n=("total time")/("half- life period")=(90)/(30)=3`
Here, n=number of half-life
`=(600)/(8)=75" atoms"`
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