Let be the number of particles emitted by 1 gram of Na 24 radioactive nuclei
(half life=15 hrs) in 7.5 hours, is close to (Avogadro number =6.0231023/g. mole) :
As we learnt in
Number of nuclei in terms of half life -
- wherein
Very useful to determine number of nuclei in terms of half life
Total number of nuclei in
1 g of
Number of nuclei left after 7.5 hr is
Correct option is 4.
Option 1)
This is an incorrect option.
Option 2)
This is the correct option.
Option 3)
This is an incorrect option.
Option 4)
This is an incorrect option.
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