Short Answer
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 x 10-27 kg)
(a) What mass of 234Th was initially present?
(b) What is the decay rate after 68 days?
Correct Answer:
Verified
(a) 0.12 g...View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Correct Answer:
Verified
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Q2: The iron nucleus has the greatest binding
Q20: Going from medium mass nuclei to heavy
Q34: Which of the following descriptions best describes
Q41: Rutherfordium-261 has a half-life of 1.08 min.How
Q70: If a nucleus decays by β- decay
Q74: The neutral deuterium atom, <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB2997/.jpg" alt="The
Q75: A sphere made of a radioactive isotope
Q77: How much energy is released in the
Q78: Two deuterium nuclei, <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB2997/.jpg" alt="Two deuterium
Q87: If a nucleus decays by gamma decay