Radioactive decay: The unstable isotope ²³⁴Th decays by β emission with a half-life of 24.5 days. The initial decay rate of the sample was 9.9 × 10¹³ Bq. (1 u = 1.6605 × 10^-27 kg)
(a) What mass of ²³⁴Th was initially present?
(b) What is the decay rate after 68 days?

Question

Quizplus · Accepted Answer

The Answer of Radioactive decay: The unstable isotope ²³⁴Th decays by β emission with a half-life of 24.5 days. The initial decay rate of the sample was 9.9 × 10¹³ Bq. (1 u = 1.6605 × 10^-27 kg) (a) What mass of ²³⁴Th was initially present? (b) What is the decay rate after 68 days?

Radioactive Decay: the Unstable Isotope 234Th Decays by β Emission

Radioactive Decay: the Unstable Isotope ²³⁴Th Decays by β Emission