L. Decay constant of 197Hg is 0.017 h.
What is its half life?
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Decay constant of 197Hg is 0.017 h. Its half life is 40.77 hours.
Given the Decay constant (λ) of Hg of mass number 197 is 0.017 h⁻¹.
To find the half life of Hg.
We know, half life (T) = 0.693/λ
Putting λ = 0.017h⁻¹, we get half life as:
T = (0.693/0.017) h = 40.77h
This is the half life of the material.
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