Chemistry - Radioactivity Question with Solution | TestHub
ChemistryRadioactivityRadioactive Series and Nuclear ReactionsMedium2 minQB
ChemistryMediummultiple choice
When disintegrates into its stable end product then select the correct statements
Options:(select one or more)
Answer:
A, B, C
Solution:
Mass number falls by 232 - 208 = 24, so 24/4 = 6 α-particles. 6α lower the charge by 12 (90 → 78); the actual end point is 82, so 4 β-particles are emitted: (A), (B) true.
(C) Decay is first order, so activity falls exponentially: true.
(D) Mass numbers in the chain are 232, 228, 224, 220, 216, 212, 208 (α lowers A by 4, β does not change it). A = 225 never appears: false.
Answer: (A), (B), (C).
Stream:JEESubject:ChemistryTopic:RadioactivitySubtopic:Radioactive Series and Nuclear Reactions
⏱ 2mℹ️ Source: QB
Doubts & Discussion
Loading discussions...
