b) 232U decays to 234Th by a emission. The decay t₁ = 4.47 × 10⁹ years. 2 i) Calculate the decay constant, λ. ii) If 30 g lump of 238U existed about 4.54 × 10⁰ years ago when the earth was formed. Find the amount of 238U would be now. iii) Determine the number of a particle emitted per second it would currently emit.
b) 232U decays to 234Th by a emission. The decay t₁ = 4.47 × 10⁹ years. 2 i) Calculate the decay constant, λ. ii) If 30 g lump of 238U existed about 4.54 × 10⁰ years ago when the earth was formed. Find the amount of 238U would be now. iii) Determine the number of a particle emitted per second it would currently emit.
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Transcribed Image Text:b)
232U decays to 234Th by a emission. The decay t₁ = 4.47 × 10⁹ years.
92
2
i)
Calculate the decay constant, λ.
ii)
If 30 g lump of 238U existed about 4.54 × 10º years ago when the earth
was formed. Find the amount of 238U would be now.
iii)
Determine the number of a particle emitted per second it would currently
emit.
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